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Fix for obtaining BLACS context. #5

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Fix for obtaining BLACS context. #5

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5 changes: 4 additions & 1 deletion src/eigen_blacs.F
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Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,10 @@ subroutine eigen_blacs_init(TRD_COMM_WORLD,
integer :: i, j, k, ierr


call BLACS_GET(0, 0, BLACS_ICONTXT_FOR_EIGENEXA)
! In Fortran, BLACS context shares the same value with the MPI
! commuicator, so it is safe to use TRD_COMM_WORLD as
! BLACS_ICONTXT_FOR_EIGENEXA.
BLACS_ICONTXT_FOR_EIGENEXA = TRD_COMM_WORLD

allocate(tmpgrid(1:x_nnod, 1:y_nnod),
& kk0(1:x_nnod), kk1(1:x_nnod), stat=ierr)
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