[petsc-users] MATLAB and PetSc

[Sudheer Kumar]

I request for advice on the following:

I have a MATLAB code that uses some Linear algebra (LA) and Linear equation
solver (LS) routines. I have to speed up this MATLAB code by using the i)
MKL routines for LA calls and ii) Petsc routines for LS calls.

I was able to achieve the step (i) using the following commands

icc -c  -I/work/apps/matlab/2013a/extern/include
-I/work/apps/matlab/2013a/simulink/include -DMATLAB_MEX_FILE -ansi
-D_GNU_SOURCE  -fexceptions -fPIC -fno-omit-frame-pointer -pthread
 -DMX_COMPAT_64 -O -DNDEBUG  "matrixMultiply.c"

icc -O -pthread -shared
-Wl,--version-script,/work/apps/matlab/2013a/extern/lib/glnxa64/mexFunction.map
-Wl,--no-undefined -o  "matrixMultiply.mexa64"  matrixMultiply.o
 -Wl,-rpath-link,/work/apps/matlab/2013a/bin/glnxa64
-L/work/apps/matlab/2013a/bin/glnxa64 -lmx -lmex -lmat -mkl -lm -lstdc++


The code with dgemm call runs fine. However, how to achieve the step (ii),
i.e., calling the PetSc routing from MATLAB executables compiled with mex.
Please provide if you are aware of any sample codes.



I wish to eventually achieve all the above functionality for the Octave
code as well. I thought of trying first with MATLAB as I thought the
interface and support for external library support is better with it.
Please do let me know your suggestions. Thanks.


Regards
Sudheer
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20140422/234747b9/attachment.html>