1. Set number of nodes in Line 15 in himeno.f90.
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!$xmp nodes n(2,4)    ! Number of nodes is 2 x 4 = 8
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2. Create execution file
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$ make
 or
$ make arch=K   // on the K computer
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3. run when you can use mpirun command
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$ mpirun -np 8 ./himeno
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