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How to run HX on multiple processors?

How to run HX to use multiple processor?

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HyperXtrude

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Environment variables set to activate multiple processors vary from system to system.

Following are for Linux (example shows in csh setting it to 2)
- setenv MKL_NPROCS 2
setenv OMP_NUM_THREADS 2

For other systems one of the below will work - so setting all is not a bad idea.
- OMP_NUM_THREADS
MKL_NPROCS

MP_SET_NUMTHREADS

P_NUMBER_OF_THREADS

MLIB_NUMBER_OF_THREADS

Please be aware that this may not improve the speed at all, and on some cheap motherboards with fast CPU it may actually run slower.

But HX always uses out-of-core solution (as the problems are large) and hence it is I/O intensive. Hence the gains will be less.

It is possible to force HX to use in-core solutions. But for the kind of problems, one needs over 20 GB Ram. To force this, you should set MemoryForSolver to -1 in the .hx/.tcl file
- pset MemoryForSolver -1

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