subfile_read test: fewer processes cases

Author: yzanhua

tests/basic/parallel_run.sh

@@ -18,7 +18,7 @@ for p in ${check_PROGRAMS} ; do
    fi
 done
 
-for nproc in {1..12} ; do
+for nproc in 4 8 3 5 ; do
    RUN_CMD=`echo ${TESTMPIRUN} | ${SED} -e "s/NP/$nproc/g"`
    test_func ./subfile_dread
 done

tests/basic/subfile_dread.cpp

@@ -292,7 +292,7 @@ int create_subfile (const char *file_name, int rank, int np, vol_env *env_ptr) {
 
     for (i = 0; i < np; i++) { buf[i] = expected_buf_val (rank, np, i, 1, 0); }
 
-    // create a hyperslab of 1 x N
+    // create a hyperslab of 1 x np
     start[0] = rank;
     start[1] = 0;
     count[0] = 1;