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Search: Posts Made By: zwilhoit
Forum: FloEFD, FloWorks & FloTHERM January 29, 2021, 10:17
Replies: 10
Views: 2,104
Posted By zwilhoit
Bump, has anybody tested Flotherm performance...

Bump, has anybody tested Flotherm performance with Zen 2 Threadripper or Epyc?

i.e. Threadripper 3xxxX, Epyc 7xx2

Looks like Zen 3 is just around the corner, I'm assuming also with one NUMA...
Forum: FloEFD, FloWorks & FloTHERM June 21, 2020, 10:05
Replies: 10
Views: 2,104
Posted By zwilhoit
Enabling “set...

Enabling “set KMP_AFFINITY=noverbose,nowarnings,compact” was the best we ever found. Considering 2nd gen EPYC moved to 1 NUMA node per socket, I doubt this will be fixed anytime soon. My ticket with...
Forum: FloEFD, FloWorks & FloTHERM February 11, 2020, 12:56
Replies: 10
Views: 2,104
Posted By zwilhoit
EPYC 7002 (ROME) processors have moved to a...

EPYC 7002 (ROME) processors have moved to a single NUMA node per socket.

Has anybody ran FloTHERM on either EPYC 7002 or Threadripper 39X0X series processors? I'm trying to gauge if upgrading to...
Forum: FloEFD, FloWorks & FloTHERM January 8, 2019, 14:31
Replies: 10
Views: 2,104
Posted By zwilhoit
FloTHERM classic, 12.2, 1.6M cells. But we...

FloTHERM classic, 12.2, 1.6M cells.

But we see the same behavior on larger models too.

Feeding the KMP_affinity function the "verbose" command yields a cmd window when the solver is launched....
Forum: FloEFD, FloWorks & FloTHERM December 21, 2018, 17:07
Replies: 10
Views: 2,104
Posted By zwilhoit
Enabling “set...

Enabling “set KMP_AFFINITY=noverbose,nowarnings,compact” in flotherm.bin gives about a 40% improvement but we're still far from where we should be.

I strongly suspect this is because our Epyc...
Forum: FloEFD, FloWorks & FloTHERM December 19, 2018, 13:29
Replies: 10
Views: 2,104
Posted By zwilhoit
Garbage FloTHERM performance from 32-core system

2x Epyc 7301 (https://www.amd.com/en/products/cpu/amd-epyc-7301), 16x16GB DDR4-2666

I've got 32 cores at 2.7 GHz and 16 channels of memory bandwidth. Synthetic memory benchmarks show total...
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