HP XC System 3.x Software manual Example Procedure, $ make PREFIX=’srun -n1 -N1 MAKEJ=-j4

@ \

for i in ${HYPRE_DIRS}; \ do \

if [ -d $$i ]; \ then \

echo "Cleaning $$i ..."; \ (cd $$i; make clean); \

fi; \ done

veryclean: @ \

for i in ${HYPRE_DIRS}; \ do \

if [ -d $$i ]; \ then \

echo "Very-cleaning $$i ..."; \ (cd $$i; make veryclean); \

fi; \ done

Example Procedure 1

Go through the directories serially 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:

@ \

for i ${HYPRE_DIRS}; \ do \

if [ -d $$i ]; \ then \

echo "Making $$i ..."; \

echo $(PREFIX) $(MAKE) $(MAKE_J) -C $$i; \ $(PREFIX) $(MAKE) $(MAKE_J) -C $$i; \

fi; \ done

By modifying the makefile to reflect the changes illustrated above, we will now be processing each directory serially and parallelize the individual makes within each directory. The modified Makefile is invoked as follows:

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

Example Procedure 2

Go through the directories in parallel and have the make procedure within each directory be serial.

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) -C test

Using the GNU Parallel Make Capability 95