Instructions to be followed for compilation and running the code.

1. Download the irs.1.0 code from  https://asc.llnl.gov/computing_resources/purple/archive/benchmarks/irs

2. follow the instructions in it to create a build space.

3. once build space is created copy the directory /irs.1.0/sources/spu

4. Create a folder /irs.1.0/sources/spu
   create a link for file spu_irs.c inside it
   copy the file Makefile_spu and rename it to Makefile

5. Copy the Makefile_main file into /irs.1.0/build and rename it to Makefile

6. make depend

7. make

To run the code use following instructions

mpirun -np 2 ./irs /home/bbhat/CSC548/Project/irs.1.0/decks/zrad3d -child_io_off -k 00008MPI -def NDOMS=1

change the value of NDOMS from 1 to 8 in multiples of 2