Modified Makefile:

all:

$(MAKE) $(MAKE_J) struct_matrix_vector/libHYPRE_mv.a struct_linear_solvers/libHYPRE_ls.a utilities/libHYPRE_utilities.a

$(PREFIX) $(MAKE) -C test struct_matrix_vector/libHYPRE_mv.a:

$(PREFIX) $(MAKE) -C struct_matrix_vector struct_linear_solvers/libHYPRE_ls.a:

$(PREFIX) $(MAKE) -C struct_linear_solvers utilities/libHYPRE_utilities.a:

$(PREFIX) $(MAKE) -C utilities

The modified Makefile is invoked as follows:

$ make PREFIX='srun -n1 -N1' MAKE_J='-j4'

11.3.3 Example Procedure 3

Go through the directories in parallel and have the make procedure within each directory be parallel. For the purpose of this exercise, we are only parallelizing the “make all” component. The “clean” and “veryclean” components can be parallelized in a similar fashion.

Modified Makefile:

all:

$(MAKE) $(MAKE_J) struct_matrix_vector/libHYPRE_mv.a struct_linear_solvers/libHYPRE_ls.a utilities/libHYPRE_utilities.a

$(PREFIX) $(MAKE) $(MAKE_J) -C test struct_matrix_vector/libHYPRE_mv.a:

$(PREFIX) $(MAKE) $(MAKE_J) -C struct_matrix_vector struct_linear_solvers/libHYPRE_ls.a:

$(PREFIX) $(MAKE) $(MAKE_J) -C struct_linear_solvers

utilities/libHYPRE_utilities.a:

$(PREFIX) $(MAKE) $(MAKE_J) -C utilities

The modified Makefile is invoked as follows:

$ make PREFIX='srun -n1 -N1' MAKE_J='-j4'

11.4 Local Disks on Compute Nodes

The use of a local disk for private, temporary storage may be configured on the compute nodes of your HP XC system. Contact your system administrator to find out about the local disks configured on your system.

A local disk is a temporary storage space and does not hold data across execution of applications. Therefore, any information generated by the application during its execution is not saved on the local disk once the application has completed.

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