[Bug libgomp/58642] gomp regression: not "honoring" anymore task set and numactl

["vincenzo.innocente at cern dot ch" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58642

--- Comment #24 from vincenzo Innocente <vincenzo.innocente at cern dot ch> ---
ok, modified to ">="
taskset -c 0-31 gdb ./affinity-1.exe
GNU gdb (GDB) Red Hat Enterprise Linux (7.2-60.el6_4.1)
(gdb)  b
/home/data/newsoft/gcc-gomp4/libgomp/testsuite/libgomp.c/affinity-1.c:179
Breakpoint 1 at 0x400d5f: file
/home/data/newsoft/gcc-gomp4/libgomp/testsuite/libgomp.c/affinity-1.c, line
179.
(gdb) run
Breakpoint 1, main () at
/home/data/newsoft/gcc-gomp4/libgomp/testsuite/libgomp.c/affinity-1.c:181
181    /home/data/newsoft/gcc-gomp4/libgomp/testsuite/libgomp.c/affinity-1.c:
No such file or directory.
    in /home/data/newsoft/gcc-gomp4/libgomp/testsuite/libgomp.c/affinity-1.c
Missing separate debuginfos, use: debuginfo-install
glibc-2.12-1.107.el6_4.4.x86_64
(gdb) print contig_cpucount 
$1 = 32

and then spawn etc

 but
taskset -c 24-31 gdb ./affinity-1.exe
Breakpoint 1, main () at
/home/data/newsoft/gcc-gomp4/libgomp/testsuite/libgomp.c/affinity-1.c:181
181    /home/data/newsoft/gcc-gomp4/libgomp/testsuite/libgomp.c/affinity-1.c:
No such file or directory.
    in /home/data/newsoft/gcc-gomp4/libgomp/testsuite/libgomp.c/affinity-1.c
Missing separate debuginfos, use: debuginfo-install
glibc-2.12-1.107.el6_4.4.x86_64
(gdb) print contig_cpucount 
$1 = 0
I see anyhow where contig_cpucount  is set.
up to you to generalize the test…
v.



On 7 Oct, 2013, at 2:16 PM, jakub at gcc dot gnu.org <gcc-bugzilla@gcc.gnu.org>
wrote:

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58642
> 
> --- Comment #23 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
> Ah, right, obviously I meant
> --- libgomp/testsuite/libgomp.c/affinity-1.c    2013-10-07 09:31:53.884695701
> +0200
> +++ libgomp/testsuite/libgomp.c/affinity-1.c    2013-10-07 14:09:52.475331358
> +0200
> @@ -178,7 +178,7 @@ main ()
>   int test_places = 0;
> 
> #ifdef DO_FORK
> -  if (env_places == NULL && contig_cpucount == 8 && test_false
> +  if (env_places == NULL && contig_cpucount >= 8 && test_false
>       && getenv ("GOMP_AFFINITY") == NULL)
>     {
>       int i, j, status;
> (the other spot already correctly uses >= 8 - all the testcase cares about is
> that the first 8 logical CPUs can be used for affinity).
> That answers the not seeing fork case, but if it doesn't print any verified
> lines even with that, there would be some other issue.
> 
> -- 
> You are receiving this mail because:
> You reported the bug.

--
Il est bon de suivre sa pente, pourvu que ce soit en montant. 
A.G.
http://www.flickr.com/photos/vin60/1320965757/
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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libgomp/58642] gomp regression: not "honoring" anymore task set and numactl
Date: Mon, 07 Oct 2013 13:02:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idX642

--- Comment #25 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
It is fine if the testcase doesn't fork and doesn't verify for taskset -c
24-31, that would be too hard to support, the testcase doesn't fail because of
that.
But, do you get the ", verified" strings in the lines for taskset -c 0-31 run?