A few points, but first this is a nice start. If you are interested in
working on benchmarking that would be great. If so, read on.
* Barry pointed out the SOR issues that are thrashing the memory system.
This solve would run faster on the CPU (maybe, 9M eqs is a lot).
* Most applications run for
Indeed PCSetUp is taking most of the time (79%). In the version of PETSc you
are running it is doing a great deal of the setup work on the CPU. You can see
there is a lot of data movement between the CPU and GPU (in both directions)
during the setup; 64 1.91e+03 54 1.21e+03 90
Clearly, we ne
It is using
MatSOR 369 1.0 9.1214e+00 1.0 7.32e+09 1.0 0.0e+00 0.0e+00
0.0e+00 29 27 0 0 0 29 27 0 0 0 803 0 0 0.00e+00 565
1.35e+03 0
which runs on the CPU not the GPU hence the large amount of time in memory
copies and poor performance. We are switchin
