[petsc-users] Streams scaling.log

[Manuel Valera]

Hi,

I'm running scaling tests on my system to check why my scaling is so poor,
and after following the MPIVersion guidelines my scaling.log output looks
like this:

Number of MPI processes 1 Processor names  node37
Triad:        12856.9252   Rate (MB/s)
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Triad:         9138.3320   Rate (MB/s)
Triad:         9945.0006   Rate (MB/s)
Triad:        10480.8471   Rate (MB/s)
Triad:        12055.4846   Rate (MB/s)
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Triad:         7394.1014   Rate (MB/s)
Triad:         5528.9757   Rate (MB/s)
Triad:         6052.7506   Rate (MB/s)
Triad:         6188.5710   Rate (MB/s)
Triad:         6944.4515   Rate (MB/s)
Triad:         7407.1594   Rate (MB/s)
Triad:         9508.1984   Rate (MB/s)
Triad:        10699.7551   Rate (MB/s)
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Number of MPI processes 1 Processor names  node37
Triad:         6682.3749   Rate (MB/s)
Triad:         6825.3243   Rate (MB/s)
Triad:         7217.8178   Rate (MB/s)
Triad:         7525.1025   Rate (MB/s)
Triad:         7882.1781   Rate (MB/s)
Triad:         8071.1430   Rate (MB/s)
Triad:        10341.9424   Rate (MB/s)
Triad:        10418.4740   Rate (MB/s)


Is this normal? i feel is different from what i get from an usual streams
test, how can i get it to work properly?

Thanks,
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