add regression test scripts for crays at nersc

only tested on Edison so far, and works fine

darshan-test/regression/cray-module-nersc/env.sh

+#!/bin/bash
+
+# General notes
+#######################
+
+# Script to set up the environment for tests on this platform.  Must export
+# the following environment variables:
+# 
+# DARSHAN_CC: command to compile C programs
+# DARSHAN_CXX: command to compile C++ programs
+# DARSHAN_F90: command to compile Fortran90 programs
+# DARSHAN_F77: command to compile Fortran77 programs
+# DARSHAN_RUNJOB: command to execute a job and wait for its completion
+
+# This script may load optional modules (as in a Cray PE), set LD_PRELOAD
+# variables (as in a dynamically linked environment), or generate mpicc
+# wrappers (as in a statically linked environment).
+
+# Notes specific to this platform (cray-module-nersc)
+########################
+# Use Cray's default compiler wrappers and load the module associated with
+# this darshan install
+#
+# RUNJOB is responsible for submitting a slurm job, waiting for its
+# completion, and checking its return status
+
+export DARSHAN_CC=cc
+export DARSHAN_CXX=CC
+export DARSHAN_F77=ftn
+export DARSHAN_F90=ftn
+
+export DARSHAN_RUNJOB="cray-module-nersc/runjob.sh"
+
+module unload darshan >& /dev/null
+module load $DARSHAN_PATH/share/craype-2.x/modulefiles/

darshan-test/regression/cray-module-nersc/runjob.sh

+#!/bin/bash
+
+# submit job and wait for it to return
+sbatch --wait -N 1 -t 10 -p debug --output $DARSHAN_TMP/$$-tmp.out --error $DARSHAN_TMP/$$-tmp.err $DARSHAN_TESTDIR/$DARSHAN_PLATFORM/slurm-submit.sl "$@"
+
+# exit with return code of this job submission
+exit $?

darshan-test/regression/cray-module-nersc/slurm-submit.sl

+#!/bin/bash -l
+
+srun -n $DARSHAN_DEFAULT_NPROCS $@