On Tue, 21 Jul 2020, Clark Williams wrote:
> Each inversion group is three SCHED_FIFO threads, so the chances of more groups
> than online cores actually getting to run is very slim. Limit the number of
> groups requested to be <= the number of online cpus.
>
> Signed-off-by: Clark Williams <williams@xxxxxxxxxx>
> ---
> src/pi_tests/pi_stress.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/src/pi_tests/pi_stress.c b/src/pi_tests/pi_stress.c
> index 0ed844c636cd..ce446d4ea037 100644
> --- a/src/pi_tests/pi_stress.c
> +++ b/src/pi_tests/pi_stress.c
> @@ -1327,6 +1327,12 @@ void process_command_line(int argc, char **argv)
> break;
> case 'g':
> ngroups = strtol(optarg, NULL, 10);
> + if (ngroups > num_processors) {
> + pi_error("the number of groups cannot exceed "
> + "the number of online processors (%d)\n",
> + num_processors);
> + exit(-1);
> + }
> pi_info("number of groups set to %d\n", ngroups);
> break;
> case 'r':
> --
> 2.26.2
>
>
Signed-off-by: John Kacur <jkacur@xxxxxxxxxx>
