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<div>Hi,</div>
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<div>As far as I know, Magma's API us not exactly the same as the original LAPACK. You may need to hack either Magma's Fortran API or internal SLEPC/PETSc source.</div>
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<div>Thanks,</div>
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<div>---------------------------------------------</div>
<div>Keita Teranishi</div>
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<div>R&D Principal Staff Member </div>
<div>Sandia National Laboratories</div>
<div>Livermore, CA 94551</div>
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<span style="font-weight:bold">From: </span>Matthew Knepley <<a href="mailto:knepley@gmail.com">knepley@gmail.com</a>><br>
<span style="font-weight:bold">Date: </span>Thursday, June 20, 2013 1:42 PM<br>
<span style="font-weight:bold">To: </span>Harshad Sahasrabudhe <<a href="mailto:hsahasra@purdue.edu">hsahasra@purdue.edu</a>><br>
<span style="font-weight:bold">Cc: </span>"<a href="mailto:petsc-users@mcs.anl.gov">petsc-users@mcs.anl.gov</a>" <<a href="mailto:petsc-users@mcs.anl.gov">petsc-users@mcs.anl.gov</a>><br>
<span style="font-weight:bold">Subject: </span>[EXTERNAL] Re: [petsc-users] Using MAGMA subroutines instead of LAPACK in SLEPc<br>
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<div dir="ltr">On Thu, Jun 20, 2013 at 10:24 PM, Harshad Sahasrabudhe <span dir="ltr">
<<a href="mailto:hsahasra@purdue.edu" target="_blank">hsahasra@purdue.edu</a>></span> wrote:<br>
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Hi,<br>
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I'm trying to run the SLEPc Eigensolver on a machine with CPUs & GPUs. I found that a package called MAGMA implements LAPACK functions on heterogeneous systems (CPU + GPU). MAGMA has functions very similar to LAPACK so that we can go and replace a call to a
LAPACK function with a call to a MAGMA function.<br>
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Now my question is, where can I apply such a hack inside SLEPc/PETSc so that the Eigensolver in SLEPc actually uses MAGMA functions instead of LAPACK functions? I'm using the PETSc 3.3-p6 and SLEPc 3.3-p3 versions.<br>
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Any help would be greatly appreciated!<br>
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<div style="">You need to do this in PETSc configure. Use --with-f-blas-lapack-lib=[<MAGMA libs>]. We have never tried this, so I don't</div>
<div style="">know if they obey the entire interface.</div>
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<div style=""> Thanks</div>
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Thanks and Regards,<br>
Harshad<br>
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-- <br>
What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>
-- Norbert Wiener </div>
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