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Switch from Pascal60 to Volta70 for 'sems-rhel7' supported builds (TRIL-255)

James Willenbring requested to merge bartlettroscoe:tril-255-sems-rhel7-Volta70 into develop

Created by: bartlettroscoe

CC: @fryeguy52

The machines 'ascicgpu14' and 'ascicgpu15' have Volta GPUs. This seems to avoid some test failures we were seeing (see TRIL-264).

I tested this on 'ascicgpu15' with:

$ ./checkin-test-atdm.sh sems-rhel7-cuda-9.2-Volta70-complex-shared-release-debug \
  --enable-packages=KokkosKernels,Tpetra --local-do-all --wipe-clean

and it gave passing tests:

  Pull: Not Performed
  Configure: Passed (0.67 min)
  Build: Passed (27.65 min)
  Test: Passed (11.26 min)
  
  100% tests passed, 0 tests failed out of 208
  
  Subproject Time Summary:
  KokkosKernels    = 496.45 sec*proc (8 tests)
  Tpetra           = 5271.99 sec*proc (200 tests)
  
  Total Test time (real) = 675.82 sec
  
  Total time for sems-rhel7-cuda-9.2-Volta70-complex-shared-release-debug = 39.59 min

A few KokkosKernels and Tpetra tests were shown failing here so this would seem to be improvement.

So still very long run-times but at least everything passed!

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