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psblas3:
base/internals/psi_idx_ins_cnv.f90 base/modules/psb_base_tools_mod.f90 base/modules/psb_gen_block_map_mod.f90 base/modules/psb_hash_map_mod.f90 base/modules/psb_indx_map_mod.f90 base/modules/psb_list_map_mod.f90 base/modules/psb_repl_map_mod.f90 base/modules/psi_i_mod.f90 base/tools/psb_cdins.f90 docs/html/footnode.html docs/html/index.html docs/html/node1.html docs/html/node10.html docs/html/node100.html docs/html/node101.html docs/html/node102.html docs/html/node103.html docs/html/node104.html docs/html/node105.html docs/html/node106.html docs/html/node107.html docs/html/node108.html docs/html/node109.html docs/html/node11.html docs/html/node110.html docs/html/node111.html docs/html/node112.html docs/html/node113.html docs/html/node114.html docs/html/node115.html docs/html/node116.html docs/html/node117.html docs/html/node118.html docs/html/node119.html docs/html/node12.html docs/html/node120.html docs/html/node13.html docs/html/node14.html docs/html/node15.html docs/html/node16.html docs/html/node17.html docs/html/node18.html docs/html/node19.html docs/html/node2.html docs/html/node20.html docs/html/node21.html docs/html/node22.html docs/html/node23.html docs/html/node24.html docs/html/node25.html docs/html/node26.html docs/html/node27.html docs/html/node28.html docs/html/node29.html docs/html/node3.html docs/html/node30.html docs/html/node31.html docs/html/node32.html docs/html/node33.html docs/html/node34.html docs/html/node35.html docs/html/node36.html docs/html/node37.html docs/html/node38.html docs/html/node39.html docs/html/node4.html docs/html/node40.html docs/html/node41.html docs/html/node42.html docs/html/node43.html docs/html/node44.html docs/html/node45.html docs/html/node46.html docs/html/node47.html docs/html/node48.html docs/html/node49.html docs/html/node5.html docs/html/node50.html docs/html/node51.html docs/html/node52.html docs/html/node53.html docs/html/node54.html docs/html/node55.html docs/html/node56.html docs/html/node57.html docs/html/node58.html docs/html/node59.html docs/html/node6.html docs/html/node60.html docs/html/node61.html docs/html/node62.html docs/html/node63.html docs/html/node64.html docs/html/node65.html docs/html/node66.html docs/html/node67.html docs/html/node68.html docs/html/node69.html docs/html/node7.html docs/html/node70.html docs/html/node71.html docs/html/node72.html docs/html/node73.html docs/html/node74.html docs/html/node75.html docs/html/node76.html docs/html/node77.html docs/html/node78.html docs/html/node79.html docs/html/node8.html docs/html/node80.html docs/html/node81.html docs/html/node82.html docs/html/node83.html docs/html/node84.html docs/html/node85.html docs/html/node86.html docs/html/node87.html docs/html/node88.html docs/html/node89.html docs/html/node9.html docs/html/node90.html docs/html/node91.html docs/html/node92.html docs/html/node93.html docs/html/node94.html docs/html/node95.html docs/html/node96.html docs/html/node97.html docs/html/node98.html docs/html/node99.html docs/html/userhtml.html docs/psblas-3.0.pdf docs/src/intro.tex New docs for LIDX. New LIDX parm in idx_cnv_ins.
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Salvatore Filippone
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@@ -7,8 +7,8 @@ original version by: Nikos Drakos, CBLU, University of Leeds
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Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
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<HTML>
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<HEAD>
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<TITLE>psb_info -- Return information about PSBLAS parallel environment</TITLE>
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<META NAME="description" CONTENT="psb_info -- Return information about PSBLAS parallel environment">
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<TITLE>psb_init -- Initializes PSBLAS parallel environment</TITLE>
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<META NAME="description" CONTENT="psb_init -- Initializes PSBLAS parallel environment">
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<META NAME="keywords" CONTENT="userhtml">
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<META NAME="resource-type" CONTENT="document">
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<META NAME="distribution" CONTENT="global">
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@@ -20,68 +20,95 @@ original version by: Nikos Drakos, CBLU, University of Leeds
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<LINK REL="next" HREF="node86.html">
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<LINK REL="previous" HREF="node84.html">
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<LINK REL="up" HREF="node84.html">
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</HEAD>
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<BODY >
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<!--Navigation Panel-->
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<A NAME="tex2html1285"
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<A NAME="tex2html1286"
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HREF="node86.html">
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<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
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<A NAME="tex2html1282"
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HREF="node84.html">
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<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
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<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
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<A NAME="tex2html1284"
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HREF="node1.html">
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<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
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<BR>
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<B> Next:</B> <A NAME="tex2html1286"
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HREF="node86.html">psb_exit Exit</A>
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<B> Up:</B> <A NAME="tex2html1282"
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HREF="node83.html">Parallel environment routines</A>
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<B> Previous:</B> <A NAME="tex2html1276"
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HREF="node84.html">psb_init Initializes</A>
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<B> <A NAME="tex2html1284"
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<B> Next:</B> <A NAME="tex2html1287"
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HREF="node86.html">psb_info Return</A>
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<B> Up:</B> <A NAME="tex2html1283"
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HREF="node84.html">Parallel environment routines</A>
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<B> Previous:</B> <A NAME="tex2html1277"
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HREF="node84.html">Parallel environment routines</A>
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<B> <A NAME="tex2html1285"
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HREF="node1.html">Contents</A></B>
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<BR>
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<BR>
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<!--End of Navigation Panel-->
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<H2><A NAME="SECTION00082000000000000000">
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psb_info -- Return information about PSBLAS parallel
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environment</A>
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<H2><A NAME="SECTION00081000000000000000">
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psb_init -- Initializes PSBLAS parallel environment</A>
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</H2>
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<P>
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<PRE>
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call psb_info(icontxt, iam, np)
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call psb_init(icontxt, np, basectxt, ids)
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</PRE>
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<P>
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This subroutine returns information about the PSBLAS parallel environment, defining
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This subroutine initializes the PSBLAS parallel environment, defining
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a virtual parallel machine.
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<DL>
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<DT><STRONG>Type:</STRONG></DT>
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<DD>Asynchronous.
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<DD>Synchronous.
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</DD>
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<DT><STRONG><B>On Entry </B></STRONG></DT>
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<DD>
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</DD>
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<DT><STRONG>icontxt</STRONG></DT>
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<DD>the communication context identifying the virtual
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parallel machine.
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<DT><STRONG>np</STRONG></DT>
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<DD>Number of processes in the PSBLAS virtual parallel machine.
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<BR>
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Scope: <B>global</B>.
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<BR>
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Type: <B>required</B>.
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Type: <B>optional</B>.
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<BR>
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Intent: <B>in</B>.
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<BR>
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Specified as: an integer variable.
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Specified as: an integer value. Default: use all available processes.
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</DD>
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<DT><STRONG>basectxt</STRONG></DT>
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<DD>the initial communication context. The new context
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will be defined from the processes participating in the initial one.
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<BR>
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Scope: <B>global</B>.
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<BR>
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Type: <B>optional</B>.
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<BR>
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Intent: <B>in</B>.
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<BR>
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Specified as: an integer value. Default: use MPI_COMM_WORLD.
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</DD>
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<DT><STRONG>ids</STRONG></DT>
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<DD>Identities of the processes to use for the new context; the
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argument is ignored when <code>np</code> is not specified. This allows the
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processes in the new environment to be in an order different from the
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original one.
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<BR>
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Scope: <B>global</B>.
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<BR>
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Type: <B>optional</B>.
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<BR>
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Intent: <B>in</B>.
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<BR>
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Specified as: an integer array. Default: use the indices <IMG
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WIDTH="94" HEIGHT="32" ALIGN="MIDDLE" BORDER="0"
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SRC="img89.png"
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ALT="$(0\dots np-1)$">.
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</DD>
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</DL>
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@@ -90,24 +117,11 @@ Specified as: an integer variable.
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<DT><STRONG><B>On Return</B></STRONG></DT>
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<DD>
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</DD>
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<DT><STRONG>iam</STRONG></DT>
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<DD>Identifier of current process in the PSBLAS virtual parallel machine.
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<BR>
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Scope: <B>local</B>.
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<BR>
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Type: <B>required</B>.
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<BR>
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Intent: <B>out</B>.
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<BR>
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Specified as: an integer value. <!-- MATH
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$-1 \le iam \le np-1$
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-->
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<IMG
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WIDTH="139" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
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SRC="img118.png"
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ALT="$-1 \le iam \le np-1$"> </DD>
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<DT><STRONG>np</STRONG></DT>
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<DD>Number of processes in the PSBLAS virtual parallel machine.
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<DT><STRONG>icontxt</STRONG></DT>
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<DD>the communication context identifying the virtual
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parallel machine. Note that this is always a duplicate of
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<code>basectxt</code>, so that library communications are completely
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separated from other communication operations.
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<BR>
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Scope: <B>global</B>.
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<BR>
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@@ -115,56 +129,48 @@ Type: <B>required</B>.
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<BR>
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Intent: <B>out</B>.
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<BR>
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Specified as: an integer variable. </DD>
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Specified as: an integer variable.
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</DD>
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</DL>
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<P>
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<FONT SIZE="+1"><B>Notes</B></FONT>
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<OL>
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<LI>For processes in the virtual parallel machine the identifier
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will satisfy <!-- MATH
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$0 \le iam \le np-1$
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-->
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<IMG
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WIDTH="128" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
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SRC="img119.png"
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ALT="$0 \le iam \le np-1$">;
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<LI>A call to this routine must precede any other PSBLAS call.
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</LI>
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<LI>If the user has requested on <code>psb_init</code> a number of
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processes less than the total available in the parallel execution
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environment, the remaining processes will have on return <IMG
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WIDTH="73" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
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SRC="img120.png"
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ALT="$iam=-1$">;
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the only call involving <code>icontxt</code> that any such process may
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execute is to <code>psb_exit</code>.
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<LI>It is an error to specify a value for <IMG
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WIDTH="22" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
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SRC="img117.png"
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ALT="$np$"> greater than the
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number of processes available in the underlying base parallel
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environment.
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</LI>
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</OL>
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<P>
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<HR>
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HREF="node83.html">Parallel environment routines</A>
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<B> Previous:</B> <A NAME="tex2html1276"
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<B> Next:</B> <A NAME="tex2html1287"
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HREF="node84.html">Parallel environment routines</A>
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