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Issue with ACML dcopy on AMD Opteron 6276

Question asked by steabert on Sep 28, 2012
Latest reply on Mar 28, 2013 by steabert

Hi,

 

I've been having this odd problem with the dcopy function in the ACML blas library. When copying a lot of elements (~10**9), dcopy seems to fail at a certain point. I tested this with the included small fortran program. The odd thing is that with my system blas everything works fine. When I tried MKL, it also failed at the exact same point. When I run the code on an intel processor, it also runs fine.

 

I used ACML 5.2.0 on AMD Opteron 6276, Linux 3.2.0-23 x86_64, and compiled as follows: gfortran test_dcopy.f /opt/acml5.2.0/gfortran64/lib/libacml.a

 

kind regards,

Steven

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