Use number of specified thread for the compilation

[umangyadav]

Currently MIGRAPHX_GPU_COMPILE_PARALLEL has no effect because par_for.hpp is not passing min_grain param. This PR fixes that.

[TedThemistokleous]

LGTM. @causten this may be related to that issue we saw last week with par_for falling especially that stack dump we saw in within simple_par_for in gdb.

[pfultz2]

We shouldn't do this. The min_grain will be ignored when we are using ParallelSTL. Instead, we should use simple_par_for directly to ensure it will always create the correct number of threads. We could probably have par_for with min_grain call simple_par_for directly and the overload without the min_grain can use par_for_each.

[umangyadav]

We shouldn't do this. The min_grain will be ignored when we are using ParallelSTL. Instead, we should use simple_par_for directly to ensure it will always create the correct number of threads. We could probably have par_for with min_grain call simple_par_for directly and the overload without the min_grain can use par_for_each.

Done

[TedThemistokleous]

We shouldn't do this. The min_grain will be ignored when we are using ParallelSTL. Instead, we should use simple_par_for directly to ensure it will always create threads. We could probably have par_for with min_grain call simple_par_for directly and the overload without the min_grain can use par_for_each.

Ah, that makes better sense and good catch. Didn't really think about the parallel STL case.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.86%. Comparing base (b49d539) to head (5e3082a).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #2978   +/-   ##
========================================
  Coverage    91.86%   91.86%           
========================================
  Files          484      484           
  Lines        18609    18609           
========================================
  Hits         17095    17095           
  Misses        1514     1514           

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