Re: [Starpu-devel] GPU issue with r12137

[Xavier Lacoste <xavier.lacoste@inria.fr>]

Hello,

It's very very strange...

I got no error (applied the patch on a clean 12533)...

But the result is still false.

I changed the right on the files, sorry.

Anyway, I can keep running the tests it's quite quick to do...

XL

PS : Here are copies of the files :

> cat loadEnv

module purge

module load scm/git/1.8.1.2 hardware/hwloc/1.8.1 trace/fxt/0.2.13

module load compiler/intel/13.4.183

module load mpi/openmpi/1.6.5

module load partitioning/scotch/int64/5.1.12b

module load editor/emacs/24.3

module load gpu/cuda/5.5

export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/lustre/lacoste/starpu-install/lib/pkgconfig

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/lustre/lacoste/starpu-install/lib

export STARPU_HOSTNAME=mirage

export PATH=$HOME/eztrace/bin:$PATH

> cat test.sh

#!/bin/bash

#make clean

if [ $? -ne 0 ]; then

    exit 125

fi

#git stash apply stash@{1}

if [ $? -ne 0 ]; then

    exit 125

fi

make -j 12 && make install

if [ $? -ne 0 ]; then

    exit 125

fi

#git reset --hard

if [ $? -ne 0 ]; then

    exit 125

fi

#make -C $HOME/ricar/src clean

if [ $? -ne 0 ]; then

    exit 125

fi

#make -C $HOME/ricar/src examples debug -j

if [ $? -ne 0 ]; then

    exit 125

fi

cd $HOME/ricar/src

if [ $? -ne 0 ]; then

    exit 125

fi

STARPU_HISTORY_MAX_ERROR=20000 ./example/bin/simple -iparm IPARM_STARPU API_YES -iparm IPARM_DEFAULT_ORDERING API_NO -iparm IPARM_ORDERING_CMIN 20 -t 11  -iparm IPARM_CUDA_NBR 1 -

v 4 -iparm IPARM_ITERMAX 1 -lap 10000 -iparm IPARM_FACTORIZATION API_FACT_LLT 2>&1|grep Precision

result=$(STARPU_HISTORY_MAX_ERROR=20000 ./example/bin/simple -iparm IPARM_STARPU API_YES -iparm IPARM_DEFAULT_ORDERING API_NO -iparm IPARM_ORDERING_CMIN 20 -t 11  -iparm IPARM_CUD

A_NBR 1 -v 4 -iparm IPARM_ITERMAX 1 -lap 10000 -iparm IPARM_FACTORIZATION API_FACT_LLT 2>&1|grep Precision|awk '{if ( $6 > 10e-10) print 1; else print 0}')

if [ $? -ne 0 ]; then

    exit 125

fi

exit $result

----------------------------------------

Xavier Lacoste

xavier.lacoste@inria.fr

INRIA Bordeaux Sud-Ouest

200, avenue de la Vieille Tour

33405 Talence Cedex

Tél : +33 (0)5 24 57 40 69

Le 3 avr. 2014 à 16:38, Samuel Thibault <samuel.thibault@ens-lyon.org> a écrit :

Xavier Lacoste, le Thu 03 Apr 2014 14:42:16 +0200, a écrit :

Yes I have only one GPU with 11 cores.

Could you apply the attached patch and send the resulting backtrace?
That will tell us when it tries to do a CUDA-CUDA transfer.

(I don't have the permissions on starpu.git/loadEnv and test.sh)

Samuel
<patch.txt>