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mcexec: --mpol-threshold to control MPOL_BIND/MPOL_PREFERRED

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This commit is contained in:
Balazs Gerofi
2017-02-08 21:49:25 +09:00
parent b4aecfd43c
commit 26b9484bae
8 changed files with 23 additions and 7 deletions
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17
executer/user/mcexec.c
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@ -157,6 +157,7 @@ static int enable_vdso = 1;
static int mpol_no_heap = 0;
static int mpol_no_stack = 0;
static int mpol_no_bss = 0;
static unsigned long mpol_threshold = (1024*1024);
/* Partitioned execution (e.g., for MPI) */
static int nr_processes = 0;
@ -1111,7 +1112,7 @@ static int reduce_stack(struct rlimit *orig_rlim, char *argv[])
void print_usage(char **argv)
{
fprintf(stderr, "Usage: %s [-c target_core] [-n nr_partitions] [<mcos-id>] (program) [args...]\n", argv[0]);
fprintf(stderr, "usage: %s [-c target_core] [-n nr_partitions] [--mpol-threshold=N] [--mpol-no-heap] [--mpol-no-bss] [--mpol-no-stack] [<mcos-id>] (program) [args...]\n", argv[0]);
}
void init_sigaction(void)
@ -1300,6 +1301,12 @@ static struct option mcexec_options[] = {
.flag = &mpol_no_bss,
.val = 1,
},
{
.name = "mpol-threshold",
.has_arg = required_argument,
.flag = NULL,
.val = 'm',
},
/* end */
{ NULL, 0, NULL, 0, },
};
@ -1355,7 +1362,7 @@ int main(int argc, char **argv)
}
/* Parse options ("+" denotes stop at the first non-option) */
while ((opt = getopt_long(argc, argv, "+c:n:t:", mcexec_options, NULL)) != -1) {
while ((opt = getopt_long(argc, argv, "+c:n:t:m:", mcexec_options, NULL)) != -1) {
switch (opt) {
case 'c':
target_core = atoi(optarg);
@ -1369,6 +1376,10 @@ int main(int argc, char **argv)
nr_threads = atoi(optarg);
break;
case 'm':
mpol_threshold = atol(optarg);
break;
case 0: /* long opt */
break;
@ -1702,6 +1713,8 @@ int main(int argc, char **argv)
desc->mpol_flags |= MPOL_NO_BSS;
}
desc->mpol_threshold = mpol_threshold;
if (ioctl(fd, MCEXEC_UP_PREPARE_IMAGE, (unsigned long)desc) != 0) {
perror("prepare");
close(fd);