Added ScaLAPACK wrappers #10
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…that grid2grid can be used.
… instead of the indexed one.
… from cosma layout).
…from cosma layout).
…k as a dependency from src/cosma, used only in miniapp/pgemm-miniapp.
…/COSMA into features/pdgemm_wrapper
… run either scalapack or cosma.
… then compares the results of the two.
…n scalapack. We introduce transpose_on_copy logic, where we first transpose the grids and the logical blocks, but only transpose the actual block data while copying into the send MPI buffer.
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Added ScaLAPACK wrappers, i.e. COSMA backend for matrices given in ScaLAPACK data layout.
This is less efficient than using cosma::multiply which would directly use the optimal COSMA layout, because here we pay the price of transforming matrices between scalapack and COSMA data layout, but is convenient as it provides exactly the same signatures as ScaLAPACK, which is widely used.