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77 lines
2.9 KiB
Fortran
77 lines
2.9 KiB
Fortran
1 year ago
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! Parallel Sparse BLAS GPU plugin
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! (C) Copyright 2013
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!
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! Salvatore Filippone
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! Alessandro Fanfarillo
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions
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! are met:
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! 1. Redistributions of source code must retain the above copyright
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! notice, this list of conditions and the following disclaimer.
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! 2. Redistributions in binary form must reproduce the above copyright
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! notice, this list of conditions, and the following disclaimer in the
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! documentation and/or other materials provided with the distribution.
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! 3. The name of the PSBLAS group or the names of its contributors may
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! not be used to endorse or promote products derived from this
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! software without specific written permission.
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!
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! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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! POSSIBILITY OF SUCH DAMAGE.
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!
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subroutine psb_s_hlg_from_gpu(a,info)
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use psb_base_mod
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#ifdef HAVE_SPGPU
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use hlldev_mod
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use psb_vectordev_mod
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use psb_s_hlg_mat_mod, psb_protect_name => psb_s_hlg_from_gpu
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#else
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use psb_s_hlg_mat_mod
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#endif
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implicit none
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class(psb_s_hlg_sparse_mat), intent(inout) :: a
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: hksize,rows,nzeros,allocsize,hackOffsLength,firstIndex,avgnzr
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info = 0
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#ifdef HAVE_SPGPU
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if (a%is_sync()) return
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if (a%is_host()) return
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if (.not.(c_associated(a%deviceMat))) then
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call a%free()
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return
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end if
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info = getHllDeviceParams(a%deviceMat,hksize, rows, nzeros, allocsize,&
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& hackOffsLength, firstIndex,avgnzr)
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if (info == 0) call a%set_nzeros(nzeros)
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if (info == 0) call a%set_hksz(hksize)
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if (info == 0) call psb_realloc(rows,a%irn,info)
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if (info == 0) call psb_realloc(rows,a%idiag,info)
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if (info == 0) call psb_realloc(allocsize,a%ja,info)
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if (info == 0) call psb_realloc(allocsize,a%val,info)
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if (info == 0) call psb_realloc((hackOffsLength+1),a%hkoffs,info)
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if (info == 0) info = &
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& readHllDevice(a%deviceMat,a%val,a%ja,a%hkoffs,a%irn,a%idiag)
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call a%set_sync()
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#endif
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end subroutine psb_s_hlg_from_gpu
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