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CUDA-x86.

run time problems with 10.0
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mkcolg



Joined: 30 Jun 2004
Posts: 6120
Location: The Portland Group Inc.

PostPosted: Tue Nov 24, 2009 9:28 am    Post subject: Reply with quote

Hi ink,

Since we're now able to ship all needed CUDA tools and libraries with the 10.0 compilers, you no longer need to create a sitenvrc file.

My best guess as the cause of the gfec error is a mismatch in CUDA versions and that you should remove the sitenvrc file from your 10.0 installation.

Did NVDEBUG help in determining where the hang occurs?

- Mat
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Tuan



Joined: 11 Jun 2009
Posts: 233

PostPosted: Tue Nov 24, 2009 1:55 pm    Post subject: Reply with quote

ink wrote:
Mat, many thanks for your help.
it turned out that sitenvrc still needs to be setup manually and i forgot about it. (it is a bit strange that even small incremental updates eg from 9.0-3 to 9.0-4 could not pick it up automatically).

moving on. i'm getting now
gfec: error: unrecognized option `-TARG:abi=n64'

without sitenvrc the code can be compiled but hangs (even if sitenvrc is created after the code was compiled)

with sitenvrc i'm getting the error


A PGI expert confirmed me that sitenvrc doesn't need anymore with PGI v10.0
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ink



Joined: 25 Nov 2008
Posts: 8

PostPosted: Wed Nov 25, 2009 9:50 am    Post subject: Reply with quote

well, it could be the cards on the two nodes that i used were in some bad state. i'm not quite sure. i removed sitenvrc, rebooted the nodes and also tried another node. i can compile my code with 10.0 and run it but it runs a few times slower than the 9.0-4 binary
if i set NVDEBUG=1 i see
__pgi_cu_init() found 4 devices
__pgi_cu_init() will use device 0 (V1.3)
__pgi_cu_init() compute context created
etc
so the card seems to be used
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