Le 13/02/2019 à 20:53, clipka a écrit :
> But as I presume this is using the Windows scheduler, I expect that
> genuine Linux systems may behave differently, and I'm also interested in
> other platforms (Mac, maybe BSD if some of you folks are using that, or
> actually any system you can get your hands on.)
> 
> I have also reason to believe that results may differ between compilers.
> Using g++ 5.4.0 here.

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 18.10
Release:	18.10
Codename:	cosmic

====

For gcc:

$ time ./a.out
Done.

real	0m1,096s
user	0m0,000s
sys	0m0,015s

$ g++ --version
g++ (Ubuntu 8.2.0-7ubuntu1) 8.2.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


====

For icpc:

$ time ./a.out
Done.

real	0m1,094s
user	0m0,000s
sys	0m0,015s

$ icpc --version
icpc (ICC) 19.0.1.144 20181018
Copyright (C) 1985-2018 Intel Corporation.  All rights reserved.


====

For clang:

$ time ./a.out
Done.

real	0m1,094s
user	0m0,015s
sys	0m0,000s

$ clang++ --version
clang version 7.0.0-3 (tags/RELEASE_700/final)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin

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