why DC credit can be so different

[Prime95]

Originally Posted by rudi_m

I would have expected that the default BenchCores should be the same like CoresPerTest.

I can fix that.

[Mark Rose]

I had the no idea about the BenchCores and BenchWorkers being set apart from CoresPerTest and WorkerThreads.

I'll go around and update that on my machines.

[Prime95]

Originally Posted by Mark Rose

I had the no idea about the BenchCores and BenchWorkers being set apart from CoresPerTest and WorkerThreads.

I'll go around and update that on my machines.

The default in 29.3 for auto-bench is to use all cores. In 29.4 it will be the sum of each workers cores-per-test.

[rudi_m]

Originally Posted by Prime95

The default in 29.3 for auto-bench is to use all cores. In 29.4 it will be the sum of each workers cores-per-test.

Thanks!

By the way I've noticed another possible issue with the auto-benchmark. If mprime is stopped while the benchmark is running, then it writes incomplete results to gwnum.txt. Example:

[Main thread Oct 27 05:28] Benchmarking multiple workers to tune FFT selection.
[Work thread Oct 27 05:28] Stopping primality test of M41709119 at iteration 736439 [1.76%]
[Work thread Oct 27 05:28] Worker stopped while running needed benchmarks.
[Main thread Oct 27 05:28] Timing 2240K FFT, 3 cores, 1 worker.  Average times: 10.34 ms.  Total throughput: 96.75 iter/sec.
[Main thread Oct 27 05:28] Timing 2240K FFT, 3 cores, 1 worker.  Average times: 10.25 ms.  Total throughput: 97.56 iter/sec.
[Main thread Oct 27 05:28] Timing 2240K FFT, 3 cores, 1 worker.  Average times: 11.09 ms.  Total throughput: 90.13 iter/sec.
[Main thread Oct 27 05:28] Timing 2240K FFT, 3 cores, 1 worker.  Average times: 10.86 ms.  Total throughput: 92.12 iter/sec.
[Main thread Oct 27 05:29] Timing 2240K FFT, 3 cores, 1 worker.  Average times: 10.71 ms.  Total throughput: 93.33 iter/sec.
[Main thread Oct 27 05:29] Timing 2240K FFT, 3 cores, 1 worker.  Average times: 14.75 ms.  Total throughput: 67.81 iter/sec.
[Main thread Oct 27 05:29] Timing 2304K FFT, 3 cores, 1 worker.  Average times: 11.60 ms.  Total throughput: 86.22 iter/sec.
[Main thread Oct 27 05:29] Timing 2304K FFT, 3 cores, 1 worker.  [Oct 27 05:30] Stopping all worker threads.
[Work thread Oct 27 05:30] Benchmarks complete, restarting worker.
[Work thread Oct 27 05:30] Worker stopped.

Don't know if this is a problem. But another unlucky thing is that on this machine the benchmark almost never completes because it always want to run at 5:30 but I stop it everyday at 5:30, See

$ crontab -l
30 21 * * 1-5 cd "$HOME/MPrime/$(hostname)" && nohup ./mprime -d >> mprime.log 2>&1 &
30 05 * * 1-5 killall mprime

$ grep "Benchmarking multiple workers"  mprime.log
[Main thread Sep 14 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Sep 16 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Sep 17 02:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Sep 17 23:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Sep 20 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Sep 23 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Sep 24 02:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Sep 24 23:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Sep 26 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Sep 29 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Sep 30 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 1 02:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 1 23:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 3 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 4 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 7 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 9 05:29] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 10 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 11 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 13 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 14 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 15 02:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 15 23:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 20 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 21 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 22 02:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 22 23:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 24 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 25 05:30] Benchmarking multiple workers to tune FFT selection.
[Main thread Oct 27 05:28] Benchmarking multiple workers to tune FFT selection.

$ grep "^BenchData"  gwnum.txt  | cut -d, -f 6 | sort | uniq -c
     21 2017-09-16
     42 2017-09-17
     21 2017-09-23
     60 2017-09-24
     39 2017-09-30
     78 2017-10-01
     39 2017-10-07
      3 2017-10-09
      9 2017-10-14
     30 2017-10-15
     21 2017-10-21
     42 2017-10-22
      7 2017-10-27