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October 16, 2014, 14:13 |
GFORTRAN+ACML on Opterons?
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#1 |
Member
Join Date: Apr 2009
Posts: 38
Rep Power: 17 |
Dear CFD Forum Users: Has anyone used finite-volume gfortran code with ACML for late model Opterons (hypertransport-3 / DDR3 models)? How much is gained if one does not alter the codebase at all? (i.e., not modifying the fortran to use calls to ACML-specific routines)
I'm wondering how much speed gain I can get out of (1) trying to compile with ACML, and/or (2) buying an Opteron specific FORTRAN compiler, like PGI. What I'm using right now is the latest vanilla gfortran, and I'm hoping someone who has tried this can give me a feel for how much I can gain by switching compilers. Thank You!! Patricia |
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