--- Comment #5 from vincenzo dot innocente at cern dot ch 2010-09-05 19:55
---
Subject: Re: std::pow(float) converts to double when compiled with
-std=gnu++0x
On 5 Sep, 2010, at 6:15 PM, paolo dot carlini at oracle dot com wrote:
>
>
> --- Comment #4 from paolo dot c
--- Comment #2 from vincenzo dot innocente at cern dot ch 2010-09-05 13:09
---
Subject: Re: std::pow(float) converts to double when compiled with
-std=gnu++0x
Ciao Paolo,
On 5 Sep, 2010, at 2:42 PM, paolo dot carlini at oracle dot com wrote:
>
>
> --- Comment #1 f
0 (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.5.0, GMP version 4.3.2, MPFR version 2.4.2,
MPC version 0.8.1
if fixed please backport to 4.5.x
--
Summary: std::pow(float) converts to double when compiled with -
std=gnu++0x
Product: gcc
--- Comment #3 from vincenzo dot innocente at cern dot ch 2009-01-20 09:24
---
I confirm that gcc 4.2.3 is as fast as 4.1 and at least twice as slow of gcc
4.3.2
test done on an intel core2 running RHL4 and core i7 with RHL5.
mtune either generic or native (no difference)
--
http
--- Comment #1 from vincenzo dot innocente at cern dot ch 2009-01-20 08:48
---
Created an attachment (id=17152)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17152&action=view)
test case
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38922
tatus: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: vincenzo dot innocente at cern dot ch
GCC build triplet: x86_64-redhat-linux
GCC host triplet: x86_64-redhat-linux
GCC target triplet: x86_
857412 676616 162943 49175
setenv OMP_NUM_THREADS 1
./a.out
1 2 3 4 5 6 7 8 9 10
--
Summary: the parallel version of std::random_shuffle does not
shuffle for OMP_NUM_THREADS=1
Product: gcc
Version: 4.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: vincenzo dot innocente at cern dot ch
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36729
