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psblas3:
base/modules/psb_c_serial_mod.f90 base/modules/psb_d_serial_mod.f90 base/modules/psb_s_serial_mod.f90 base/modules/psb_z_serial_mod.f90 base/serial/Makefile base/serial/impl/psb_c_csc_impl.f90 base/serial/impl/psb_c_csr_impl.f90 base/serial/impl/psb_d_csc_impl.f90 base/serial/impl/psb_d_csr_impl.f90 base/serial/impl/psb_s_csc_impl.f90 base/serial/impl/psb_s_csr_impl.f90 base/serial/impl/psb_z_csc_impl.f90 base/serial/impl/psb_z_csr_impl.f90 New sparse matrix-sparse matrix product. Implementation details for CSR/CSC matrices.
This commit is contained in:
Salvatore Filippone
@@ -3128,7 +3128,7 @@ subroutine psb_c_cp_csr_to_fmt(a,b,info)
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!locals
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type(psb_c_coo_sparse_mat) :: tmp
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logical :: rwshr_
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integer(psb_ipk_) :: nza, nr, i,j,irw, err_act, nc
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integer(psb_ipk_) :: nz, nr, i,j,irw, err_act, nc
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integer(psb_ipk_), Parameter :: maxtry=8
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integer(psb_ipk_) :: debug_level, debug_unit
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character(len=20) :: name
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@@ -3142,9 +3142,11 @@ subroutine psb_c_cp_csr_to_fmt(a,b,info)
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type is (psb_c_csr_sparse_mat)
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b%psb_c_base_sparse_mat = a%psb_c_base_sparse_mat
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if (info == 0) call psb_safe_cpy( a%irp, b%irp , info)
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if (info == 0) call psb_safe_cpy( a%ja , b%ja , info)
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if (info == 0) call psb_safe_cpy( a%val, b%val , info)
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nr = a%get_nrows()
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nz = a%get_nzeros()
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if (info == 0) call psb_safe_cpy( a%irp(1:nr+1), b%irp , info)
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if (info == 0) call psb_safe_cpy( a%ja(1:nz), b%ja , info)
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if (info == 0) call psb_safe_cpy( a%val(1:nz), b%val , info)
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class default
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call a%cp_to_coo(tmp,info)
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@@ -3221,12 +3223,137 @@ subroutine psb_c_cp_csr_from_fmt(a,b,info)
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type is (psb_c_csr_sparse_mat)
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a%psb_c_base_sparse_mat = b%psb_c_base_sparse_mat
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if (info == 0) call psb_safe_cpy( b%irp, a%irp , info)
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if (info == 0) call psb_safe_cpy( b%ja , a%ja , info)
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if (info == 0) call psb_safe_cpy( b%val, a%val , info)
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nr = b%get_nrows()
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nz = b%get_nzeros()
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if (info == 0) call psb_safe_cpy( b%irp(1:nr+1), a%irp , info)
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if (info == 0) call psb_safe_cpy( b%ja(1:nz) , a%ja , info)
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if (info == 0) call psb_safe_cpy( b%val(1:nz) , a%val , info)
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class default
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call b%cp_to_coo(tmp,info)
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if (info == psb_success_) call a%mv_from_coo(tmp,info)
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end select
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end subroutine psb_c_cp_csr_from_fmt
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subroutine psb_ccsrspspmm(a,b,c,info)
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use psb_c_mat_mod
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use psb_serial_mod, psb_protect_name => psb_ccsrspspmm
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implicit none
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class(psb_c_csr_sparse_mat), intent(in) :: a,b
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type(psb_c_csr_sparse_mat), intent(out) :: c
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: nze, ma,na,mb,nb, nzc, nza, nzb,nzeb
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character(len=20) :: name
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integer(psb_ipk_) :: err_act
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name='psb_csrspspmm'
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call psb_erractionsave(err_act)
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info = psb_success_
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ma = a%get_nrows()
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na = a%get_ncols()
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mb = b%get_nrows()
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nb = b%get_ncols()
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if ( mb /= na ) then
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write(psb_err_unit,*) 'Mismatch in SPSPMM: ',ma,na,mb,nb
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endif
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nza = a%get_nzeros()
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nzb = b%get_nzeros()
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nzc = 2*(nza+nzb)
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nze = ma*(((nza+ma-1)/ma)*((nzb+mb-1)/mb) )
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nzeb = (((nza+na-1)/na)*((nzb+nb-1)/nb))*nb
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! Estimate number of nonzeros on output.
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! Turns out this is often a large overestimate.
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call c%allocate(ma,nb,min(nzc,nze,nzeb))
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call csr_spspmm(a,b,c,info)
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call c%set_asb()
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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contains
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subroutine csr_spspmm(a,b,c,info)
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implicit none
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type(psb_c_csr_sparse_mat), intent(in) :: a,b
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type(psb_c_csr_sparse_mat), intent(inout) :: c
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: ma,na,mb,nb
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integer(psb_ipk_), allocatable :: irow(:), idxs(:)
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complex(psb_spk_), allocatable :: row(:)
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type(psb_int_heap) :: heap
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integer(psb_ipk_) :: i,j,k,irw,icl,icf, iret, &
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& nzc,nnzre, isz, ipb, irwsz, nrc, nze
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complex(psb_spk_) :: cfb
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info = psb_success_
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ma = a%get_nrows()
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na = a%get_ncols()
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mb = b%get_nrows()
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nb = b%get_ncols()
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nze = min(size(c%val),size(c%ja))
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isz = max(ma,na,mb,nb)
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call psb_realloc(isz,row,info)
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if (info == 0) call psb_realloc(isz,idxs,info)
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if (info == 0) call psb_realloc(isz,irow,info)
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if (info /= 0) return
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row = dzero
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irow = 0
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nzc = 1
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do j = 1,ma
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c%irp(j) = nzc
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nrc = 0
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do k = a%irp(j), a%irp(j+1)-1
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irw = a%ja(k)
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cfb = a%val(k)
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irwsz = b%irp(irw+1)-b%irp(irw)
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do i = b%irp(irw),b%irp(irw+1)-1
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icl = b%ja(i)
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if (irow(icl)<j) then
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nrc = nrc + 1
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idxs(nrc) = icl
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irow(icl) = j
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end if
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row(icl) = row(icl) + cfb*b%val(i)
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end do
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end do
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if (nrc > 0 ) then
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if ((nzc+nrc)>nze) then
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nze = max(ma*((nzc+j-1)/j),nzc+2*nrc)
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call psb_realloc(nze,c%val,info)
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if (info == 0) call psb_realloc(nze,c%ja,info)
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if (info /= 0) return
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end if
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call psb_msort(idxs(1:nrc))
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do i=1, nrc
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irw = idxs(i)
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c%ja(nzc) = irw
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c%val(nzc) = row(irw)
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row(irw) = dzero
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nzc = nzc + 1
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end do
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end if
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end do
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c%irp(ma+1) = nzc
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end subroutine csr_spspmm
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end subroutine psb_ccsrspspmm
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