9)
Message boards :
Number crunching :
Year of the Rat Challenge
(Message 138970)
Posted 1107 days ago by SAKAGE@AMD@jisaku
Hi SAKAGE@AMD@jisaku and Chooka,
I'm still interested in the performance you report and only wish I had the hardware to try it myself. In theory the Zen 2 CPUs should be really great in this use case, but I only bought up to 3700X (8 cores) so I can't test if something else is happening at higher core counts.
Could I request you do a Prime95 benchmark as I describe in the post linked?
http://www.primegrid.com/forum_thread.php?id=8240&nowrap=true#138938
SAKAGE@AMD@jisaku: please try 1, 2, 4, 8, 16, 32 workers on 3970X
Chook: please try 1, 2, 4, 8, 16 workers on both 1950X and 3950X
Obviously this should be done when nothing else is using CPU. It should be ok to suspend computation in BOINC temporarily for this. Results are also written to a text file results.bench.txt in the prime95 folder. Suggest you copy/paste the results in a private message to me to avoid filling this thread up.
I tested prime95 on 3970x and 3900x.
From this result, it seems that prime95 has a throughput corresponding to the number of cores.
CPUModel="AMD Ryzen Threadripper 3970X 32-Core Processor "
FFTlen=768K all-complex, (32 cores, 1 worker): 0.81 ms. Throughput: 1230.75 iter/sec.
FFTlen=768K all-complex, (32 cores, 2 workers): 0.63, 0.59 ms. Throughput: 3265.77 iter/sec.
FFTlen=768K all-complex, (32 cores, 4 workers): 0.58, 0.57, 0.60, 0.54 ms. Throughput: 6991.00 iter/sec.
FFTlen=768K all-complex, (32 cores, 8 workers): 0.73, 0.69, 0.75, 0.71, 0.78, 0.69, 0.69, 0.69 ms. Throughput: 11184.88 iter/sec.
FFTlen=768K all-complex, (32 cores, 16 workers): 1.47, 1.36, 1.38, 1.37, 1.43, 1.48, 1.35, 1.38, 1.49, 1.44, 1.35, 1.35, 1.36, 1.39, 1.37, 1.35 ms. Throughput: 11484.03 iter/sec.
FFTlen=768K all-complex, (32 cores, 32 workers): 11.87, 10.07, 8.86, 8.67, 9.76, 9.27, 8.96, 8.96, 10.31, 9.34, 9.81, 9.28, 9.46, 9.26, 9.03, 9.06, 10.95, 9.23, 8.53, 8.32, 11.08, 9.54, 9.00, 8.65, 9.56, 9.33, 9.41, 9.39, 11.29, 8.84, 9.05, 8.62 ms. Throughput: 3405.75 iter/sec.
CPUModel="AMD Ryzen 9 3900X 12-Core Processor "
FFTlen=768K all-complex, (12 cores, 1 worker): 0.49 ms. Throughput: 2056.66 iter/sec.
FFTlen=768K all-complex, (12 cores, 2 workers): 0.62, 0.59 ms. Throughput: 3295.53 iter/sec.
FFTlen=768K all-complex, (12 cores, 4 workers): 0.88, 0.88, 0.88, 0.88 ms. Throughput: 4558.04 iter/sec.
FFTlen=768K all-complex, (12 cores, 6 workers): 2.50, 1.27, 2.38, 1.28, 0.86, 0.87 ms. Throughput: 4696.47 iter/sec.
FFTlen=768K all-complex, (12 cores, 12 workers): 5.83, 5.46, 4.31, 4.41, 5.75, 5.02, 4.55, 4.52, 6.02, 4.28, 4.78, 5.94 ms. Throughput: 2405.59 iter/sec.
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