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774 lines
19 KiB
TeX
774 lines
19 KiB
TeX
\section{Data management and initialization routines}
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%
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%% psb_alloc %%
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%
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\subroutine{psb\_alloc}{Allocates a dense matrix}
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\syntax{call psb\_alloc}{m, n, x, desc\_a, info, js}
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\begin{description}
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\item[\bf On Entry]
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\item[m] The number of rows of the dense matrix to be allocated.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: Integer scalar.
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\item[n] The number of columns of the dense matrix to be allocated.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: Integer scalar.
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\item[desc\_a] The communication descriptor.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a variable of type \descdata.\\
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\item[js] The starting column.\\
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Scope: {\bf local} \\
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Type: {\bf optional}\\
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Specified as: Integer scalar.
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[x] The dense matrix to be allocated.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a one or two dimensional array.\\
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\item[info] Error code.
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: Integer scalar.
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\end{description}
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%
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%% psb_asb %%
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%
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\subroutine{psb\_asb}{Assembly a dense matrix}
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\syntax{call psb\_asb}{x, desc\_a, info}
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\begin{description}
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\item[\bf On Entry]
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\item[desc\_a] The communication descriptor.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a variable of type \descdata.\\
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[x] The dense matrix to be assembled.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a one or two dimensional array.\\
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\item[info] Error code.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: Integer scalar.\\
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\end{description}
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%
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%% psb_csrp %%
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%
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\subroutine{psb\_csrp}{Applies a right permutation to a sparse matrix}
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\syntax{call psb\_csrp}{trans, iperm, a, desc\_a, info}
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\begin{description}
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\item[\bf On Entry]
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\item[trans] A character that specifies whether to permute $A$ or $A^T$.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a single character with value 'N' for $A$ or 'T' for $A^T$.\\
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\item[iperm] An integer array containing permutation information.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: an integer one-dimensional array.\\
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\item[a] The sparse matrix to be permuted.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a \spdata variable.\\
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\item[desc\_a] The communication descriptor of type \descdata.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a variable of type \descdata.\\
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[info] Error code.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: Integer scalar.\\
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\end{description}
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%
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%% psb_descprt %%
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%
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\subroutine{psb\_descprt}{Prints a descriptor}
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\syntax{call psb\_descprt}{iout, desc\_a, glob, short}
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\begin{description}
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\item[\bf On Entry]
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\item[iout] An integer that defines the output unit.
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: Integer scalar.\\
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\item[desc\_a] The communication descriptor of type \descdata that
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must be printed.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a variable of type \descdata.\\
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[glob] ??????
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\item[short] ??????
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\end{description}
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%
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%% psb_free %%
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%
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\subroutine{psb\_free}{Frees a dense matrix}
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\syntax{call psb\_free}{x, desc\_a, info}
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\begin{description}
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\item[\bf On Entry]
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\item[x] The dense matrix to
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be freed.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a one or two dimensional array.
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\item[desc\_a] The communication descriptor.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a variable of type \descdata.\\
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[info] Error code.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: Integer scalar.\\
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\end{description}
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%
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%% psb_gelp %%
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%
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\subroutine{psb\_gelp}{Applies a left permutation to a dense matrix}
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\syntax{call psb\_gelp}{trans, iperm, x, desc\_a, info}
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\begin{description}
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\item[\bf On Entry]
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\item[trans] A character that specifies whether to permute $A$ or $A^T$.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a single character with value 'N' for $A$ or 'T' for $A^T$.\\
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\item[iperm] An integer array containing permutation information.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: an integer one-dimensional array.\\
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\item[x] The dense matrix to be permuted.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a one or two dimensional array.\\
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\item[desc\_a] The communication descriptor.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a variable of type \descdata.\\
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[info] Error code.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: Integer scalar.\\
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\end{description}
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%
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%% psb_spins %%
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%
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\subroutine{psb\_spins}{Insert a cloud of elements into a sparse matrix}
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\syntax{call psb\_spins}{nz, ia, ja, val, a, desc\_a, info, is, js}
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\begin{description}
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\item[\bf On Entry]
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\item[nz] the number of elements to be inserted.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: an integer scalar.
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\item[ia] the row indices of the elements to be inserted.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: an integer array of size $nz$.
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\item[ja] the column indices of the elements to be inserted.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: an integer array of size $nz$.
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\item[val] the elements to be inserted.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: an array of size $nz$.
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\item[desc\_a] The communication descriptor.\\
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Scope: {\bf local}. \\
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Type: {\bf required}.\\
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Specified as: a variable of type \descdata.\\
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\item[is] the starting row on matrix $a$.\\
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Scope:{\bf local}.\\
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Type:{\bf optional}.\\
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Specified as: an integer vaule.
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\item[js] the starting column on matrix $a$.\\
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Scope:{\bf local}.\\
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Type:{\bf optional}\\
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Specified as: an integer value
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[a] the matrix into which elements will be inserted.\\
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Scope:{\bf local}\\
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Type:{\bf required}\\
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Specified as: a structured data of type \spdata.
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\item[info] Error code.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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\end{description}
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%
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%% psb_dscall %%
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%
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\subroutine{psb\_dscall}{Allocates a communication descriptor}
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\syntax{call psb\_dscall}{m, n, parts, icontxt, desc\_a, info}
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\syntax*{call psb\_dscall}{m, v, icontxt, desc\_a, info, flag}
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\begin{description}
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\item[\bf On Entry]
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\item[m] the number of rows of the problem.\\
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Scope:{\bf global}.\\
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Type:{\bf required}.\\
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Specified as: an integer value.
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\item[n] the number of columns of the problem.\\
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Scope:{\bf global}.\\
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Type:{\bf required}.\\
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Specified as: an integer value.
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\item[parts] the subroutine that defines the partitioning scheme.\\
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Scope:{\bf global}.\\
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Type:{\bf required}.\\
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Specified as: a subroutine as described in ???
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\item[icontxt] the communication context.\\
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Scope:{\bf global}.\\
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Type:{\bf required}.\\
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Specified as: an integer value.
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[desc\_a] the communication descriptor.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: a structured data of type \descdata.
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\item[info] Error code.
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: an integer variable.\\
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\end{description}
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%
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%% psb_dscasb %%
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%
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\subroutine{psb\_dscasb}{Communication descriptor assembly routine}
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\syntax{call psb\_dscasb}{desc\_a, info}
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\begin{description}
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\item[\bf On Entry]
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\item[desc\_a] the communication descriptor.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: a structured data of type \descdata.
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[info] Error code.
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: an integer variable.
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\item[arg]
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\end{description}
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%
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%% psb_dsccpy %%
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%
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\subroutine{psb\_dsccpy}{Copies a communication descriptor}
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\syntax{call psb\_dsccpy}{desc\_out, desc\_a, info}
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\begin{description}
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\item[\bf On Entry]
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\item[desc\_a] the communication descriptor.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: a structured data of type \descdata.
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[desc\_out] the communication descriptor copy.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: a structured data of type \descdata.
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\item[info] Error code.
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: an integer variable.\\
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\end{description}
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%
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%% psb_dscfree %%
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%
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\subroutine{psb\_dscfree}{Frees a communication descriptor}
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\syntax{call psb\_dscfree}{desc\_a, info}
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\begin{description}
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\item[\bf On Entry]
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\item[desc\_a] the communication descriptor to be freed.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: a structured data of type \descdata.
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[info] Error code.
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: an integer variable.
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\end{description}
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%
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%% psb_dscins %%
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%
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\subroutine{psb\_dscins}{Comunnication descriptor insert routine}
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\syntax{call psb\_dscins}{nz, ia, ja, desc\_a, info, is, js}
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\begin{description}
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\item[\bf On Entry]
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\item[nz] the number of points being inserted.\\
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Scope: {\bf local}.\\
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Type: {\bf required}.\\
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Specified as: an integer value.
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\item[ia] the row indices of the points being inserted.\\
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Scope: {\bf local}.\\
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Type: {\bf required}.\\
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Specified as: an integer array of length $nz$.
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\item[ja] the column indices of the points being inserted.\\
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Scope: {\bf local}.\\
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Type: {\bf required}.\\
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Specified as: an integer array of length $nz$.
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\item[is] the row offset.\\
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Scope:{\bf local}.\\
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Type:{\bf optional}.\\
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Specified as: an integer value.
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\item[js] the column offset.\\
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Scope: {\bf local}.\\
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Type: {\bf optional}.\\
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Specified as: an integer value.
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[desc\_a] the communication descriptor to be freed.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: a structured data of type \descdata.
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\item[info] Error code.
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: an integer variable.
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\end{description}
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%
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%% psb_dscren %%
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%
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\subroutine{psb\_dscren}{Applies a renumeration to a communication descriptor}
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\syntax{call psb\_dscren}{trans, iperm, desc\_a, info}
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\begin{description}
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\item[\bf On Entry]
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\item[trans] A character that specifies whether to permute $A$ or $A^T$.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: a single character with value 'N' for $A$ or 'T' for $A^T$.\\
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\item[iperm] An integer array containing permutation information.\\
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: an integer one-dimensional array.\\
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\item[desc\_a] the communication descriptor.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: a structured data of type \descdata.
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[info] Error code.
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: an integer variable.
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\end{description}
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%
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%% psb_spalloc %%
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%
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\subroutine{psb\_spalloc}{Allocates a sparse matrix}
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\syntax{call psb\_spalloc}{a, desc\_a, info, nnz}
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\begin{description}
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\item[\bf On Entry]
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\item[desc\_a] the communication descriptor.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: a structured data of type \descdata.
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\item[nnz] the number of nonzeroes in the matrix.\\
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Scope: {\bf global}.\\
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Type: {\bf optional}.\\
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Specified as: an integer value.
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[a] the matrix to be allocated.\\
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Scope:{\bf local}\\
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Type:{\bf required}\\
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Specified as: a structured data of type \spdata.
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\item[info] Error code.
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: an integer variable.
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\end{description}
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%
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%% psb_spasb %%
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%
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\subroutine{psb\_spasb}{Sparse matrix assembly routine}
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\syntax{call psb\_spasb}{a, desc\_a, info, afmt, up, dup}
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\begin{description}
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\item[\bf On Entry]
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\item[desc\_a] the communication descriptor.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: a structured data of type \descdata.
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\item[afmt] the storage format for the sparse matrix.\\
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Scope: {\bf global}.\\
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Type: {\bf optional}.\\
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Specified as: an array of characters. If not specified 'CSR' will be assumed.
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\item[up] ???.\\
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Scope: {\bf global}.\\
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Type: {\bf optional}.\\
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Specified as: .
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\item[dup] ???.\\
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Scope: {\bf global}.\\
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Type: {\bf optional}.\\
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Specified as:
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[a] the matrix to be assembled.\\
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Scope:{\bf local}\\
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Type:{\bf required}\\
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Specified as: a structured data of type \spdata.
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\item[info] Error code.
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Scope: {\bf local} \\
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Type: {\bf required}\\
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Specified as: an integer variable.
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\end{description}
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%
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%% psb_spcnv %%
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%
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\subroutine{psb\_spcnv}{Converts a sparse matrix storage format}
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\syntax{call psb\_spcnv}{a, b, desc\_a, info}
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\begin{description}
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\item[\bf On Entry]
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\item[a] the matrix to be converted.\\
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Scope:{\bf local}\\
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Type:{\bf required}\\
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Specified as: a structured data of type \spdata.
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\item[desc\_a] the communication descriptor.\\
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Scope:{\bf local}.\\
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Type:{\bf required}.\\
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Specified as: a structured data of type \descdata.
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\end{description}
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\begin{description}
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\item[\bf On Return]
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\item[b] the converted matrix.\\
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Scope:{\bf local}\\
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Type:{\bf required}\\
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Specified as: a structured data of type \spdata.
|
|
\item[info] Error code.
|
|
Scope: {\bf local} \\
|
|
Type: {\bf required}\\
|
|
Specified as: an integer variable.
|
|
\end{description}
|
|
|
|
|
|
|
|
%
|
|
%% psb_spfree %%
|
|
%
|
|
\subroutine{psb\_spfree}{Frees a sparse matrix}
|
|
|
|
\syntax{call psb\_spfree}{a, desc\_a, info}
|
|
|
|
\begin{description}
|
|
\item[\bf On Entry]
|
|
\item[a] the matrix to be freed.\\
|
|
Scope:{\bf local}\\
|
|
Type:{\bf required}\\
|
|
Specified as: a structured data of type \spdata.
|
|
\item[desc\_a] the communication descriptor.\\
|
|
Scope:{\bf local}.\\
|
|
Type:{\bf required}.\\
|
|
Specified as: a structured data of type \descdata.
|
|
\end{description}
|
|
|
|
\begin{description}
|
|
\item[\bf On Return]
|
|
\item[info] Error code.
|
|
Scope: {\bf local} \\
|
|
Type: {\bf required}\\
|
|
Specified as: an integer variable.
|
|
\end{description}
|
|
|
|
|
|
|
|
%
|
|
%% psb_ins %%
|
|
%
|
|
\subroutine{psb\_ins}{Sparse matrix insertion routine}
|
|
|
|
\syntax{call psb\_ins}{m, n, x, ix, jx, blck, desc\_a, info, iblck, jblck}
|
|
|
|
\begin{description}
|
|
\item[\bf On Entry]
|
|
\item[m] rows number of submatrix belonging to blck to be inserted..\\
|
|
Scope:{\bf local}.\\
|
|
Type:{\bf required}.\\
|
|
Specified as: an integer value.
|
|
\item[n] columns number of submatrix belonging to blck to be inserted.\\
|
|
Scope:{\bf local}.\\
|
|
Type:{\bf required}.\\
|
|
Specified as: an integer value.
|
|
\item[ix] x global-row corresponding to position at which blck submatrix must be inserted.\\
|
|
Scope:{\bf local}.\\
|
|
Type:{\bf required}.\\
|
|
Specified as: an integer value.
|
|
\item[jx] x global-col corresponding to position at which blck submatrix must be inserted.\\
|
|
Scope:{\bf local}.\\
|
|
Type:{\bf required}.\\
|
|
Specified as: an integer value.
|
|
\item[blck] the dense submatrix to be inserted.\\
|
|
Scope:{\bf local}.\\
|
|
Type:{\bf required}.\\
|
|
Specified as: a one or two dimensional array.
|
|
\item[desc\_a] the communication descriptor.\\
|
|
Scope:{\bf local}.\\
|
|
Type:{\bf required}.\\
|
|
Specified as: a structured data of type \descdata.
|
|
\item[iblck] first row of submatrix belonging to blck to be inserted.\\
|
|
Scope:{\bf local}.\\
|
|
Type:{\bf required}.\\
|
|
Specified as: an integer value.
|
|
\item[jblck] first column of submatrix belonging to blck to be inserted.\\
|
|
Scope:{\bf local}.\\
|
|
Type:{\bf required}.\\
|
|
Specified as: an integer value.
|
|
\end{description}
|
|
|
|
\begin{description}
|
|
\item[\bf On Return]
|
|
\item[x] the output dense matrix.\\
|
|
Scope: {\bf local} \\
|
|
Type: {\bf required}\\
|
|
Specified as: a one or two dimensional array.\\
|
|
\item[info] Error code.
|
|
Scope: {\bf local} \\
|
|
Type: {\bf required}\\
|
|
Specified as: an integer variable.
|
|
\end{description}
|
|
|
|
|
|
|
|
%
|
|
%% psb_sprn %%
|
|
%
|
|
\subroutine{psb\_sprn}{Reinit sparse matrix structure for psblas routines.}
|
|
|
|
\syntax{call psb\_sprn}{a, decsc\_a, info}
|
|
|
|
\begin{description}
|
|
\item[\bf On Entry]
|
|
\item[a] the matrix to be reinitialized.\\
|
|
Scope:{\bf local}\\
|
|
Type:{\bf required}\\
|
|
Specified as: a structured data of type \spdata.
|
|
\item[desc\_a] the communication descriptor.\\
|
|
Scope:{\bf local}.\\
|
|
Type:{\bf required}.\\
|
|
Specified as: a structured data of type \descdata.
|
|
\end{description}
|
|
|
|
\begin{description}
|
|
\item[\bf On Return]
|
|
\item[info] Error code.
|
|
Scope: {\bf local} \\
|
|
Type: {\bf required}\\
|
|
Specified as: an integer variable.
|
|
\end{description}
|
|
|
|
%
|
|
%% psb_spupdate %%
|
|
%
|
|
\subroutine{psb\_spupdate}{Updates a sparse matrix.}
|
|
|
|
\syntax{call psb\_spupdate}{a, ia, ja, blck, desc\_a, info, ix, jx, updflag}
|
|
|
|
\begin{description}
|
|
\item[\bf On Entry]
|
|
\end{description}
|
|
|
|
\begin{description}
|
|
\item[\bf On Return]
|
|
\end{description}
|
|
|
|
|
|
|
|
%
|
|
%% psb_glob_to_loc %%
|
|
%
|
|
\subroutine{psb\_glob\_to\_loc}{Global to local indices convertion}
|
|
|
|
\syntax{call psb\_glob\_to\_loc}{x, y, desc\_a, info, iact}
|
|
\syntax*{call psb\_glob\_to\_loc}{x, desc\_a, info, iact}
|
|
|
|
\begin{description}
|
|
\item[\bf On Entry]
|
|
\item[x] An integer vector of indices to be converted.\\
|
|
Scope: {\bf local} \\
|
|
Type: {\bf required}\\
|
|
Specified as: a rank one integer array.\\
|
|
\item[desc\_a] the communication descriptor.\\
|
|
Scope:{\bf local}.\\
|
|
Type:{\bf required}.\\
|
|
Specified as: a structured data of type \descdata.
|
|
\item[iact] specifies action to be taken in case of range errors.
|
|
Scope: {\bf global} \\
|
|
Type: {\bf optional}\\
|
|
Specified as: a character variable \verb|E|, \verb|W| or \verb|A|.
|
|
\end{description}
|
|
|
|
\begin{description}
|
|
\item[\bf On Return]
|
|
\item[x] If $y$ is not present,
|
|
then $x$ is overwritten with the translated integer indices.
|
|
Scope: {\bf global} \\
|
|
Type: {\bf required}\\
|
|
Specified as: a rank one integer array.
|
|
\item[y] If $y$ is not present,
|
|
then $y$ is overwritten with the translated integer indices, and $x$
|
|
is left unchanged.
|
|
Scope: {\bf global} \\
|
|
Type: {\bf optional}\\
|
|
Specified as: a rank one integer array.
|
|
\item[info] Error code.
|
|
Scope: {\bf local} \\
|
|
Type: {\bf required}\\
|
|
Specified as: an integer variable.
|
|
\end{description}
|
|
|
|
|
|
|
|
%
|
|
%% psb_loc_to_glob %%
|
|
%
|
|
\subroutine{psb\_loc\_to\_glob}{Local to global indices conversion}
|
|
|
|
\syntax{call psb\_loc\_to\_glob}{x, y, desc\_a, info, iact}
|
|
\syntax*{call psb\_loc\_to\_glob}{x, desc\_a, info, iact}
|
|
|
|
\begin{description}
|
|
\item[\bf On Entry]
|
|
\item[x] An integer vector of indices to be converted.\\
|
|
Scope: {\bf local} \\
|
|
Type: {\bf required}\\
|
|
Specified as: a rank one integer array.\\
|
|
\item[desc\_a] the communication descriptor.\\
|
|
Scope:{\bf local}.\\
|
|
Type:{\bf required}.\\
|
|
Specified as: a structured data of type \descdata.
|
|
\item[iact] specifies action to be taken in case of range errors.
|
|
Scope: {\bf global} \\
|
|
Type: {\bf optional}\\
|
|
Specified as: a character variable \verb|E|, \verb|W| or \verb|A|.
|
|
\end{description}
|
|
|
|
\begin{description}
|
|
\item[\bf On Return]
|
|
\item[x] If $y$ is not present,
|
|
then $x$ is overwritten with the translated integer indices.
|
|
Scope: {\bf global} \\
|
|
Type: {\bf required}\\
|
|
Specified as: a rank one integer array.
|
|
\item[y] If $y$ is not present,
|
|
then $y$ is overwritten with the translated integer indices, and $x$
|
|
is left unchanged.
|
|
Scope: {\bf global} \\
|
|
Type: {\bf optional}\\
|
|
Specified as: a rank one integer array.
|
|
\item[info] Error code.
|
|
Scope: {\bf local} \\
|
|
Type: {\bf required}\\
|
|
Specified as: an integer variable.
|
|
\end{description}
|
|
|
|
%%% Local Variables:
|
|
%%% mode: latex
|
|
%%% TeX-master: "userguide"
|
|
%%% End:
|