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25 lines
507 B
25 lines
507 B
5 years ago
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! minimal Scalapack demo
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implicit none
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integer :: ictxt, myid, nprocs, mycol, myrow, npcol, nprow
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real :: eps
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real, external :: pslamch
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! arbitrary test parameters
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npcol = 2
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nprow = 2
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call blacs_pinfo(myid, nprocs)
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call blacs_get(-1, 0, ictxt)
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call blacs_gridinit(ictxt, "C", nprocs, 1)
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call blacs_gridinfo(ictxt, nprow, npcol, myrow, mycol)
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eps = pslamch(ictxt, 'E')
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if(myrow == mycol) print '(A, F10.6)', "OK: Scalapack Fortran eps=", eps
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call blacs_gridexit(ictxt)
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call blacs_exit(0)
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end program
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