From: cyg Simple <cygsimple@gmail.com>
To: cygwin@cygwin.com
Subject: Re: OpenMPI Problem
Date: Sun, 18 Dec 2016 17:52:00 -0000 [thread overview]
Message-ID: <529afec8-bbe5-19b4-8122-d610eb2a2eba@gmail.com> (raw)
In-Reply-To: <CAGKnoQA3JwziRerSGxr6Dqnxx_zgitrJ1FuRg5oFk7wuhh0GtQ@mail.gmail.com>
On 12/18/2016 9:55 AM, Bahadır Ãncel wrote:
> Hello all!
> I've installed cygwin and openmpi successfully. I can compile and run
> mpi programs. Twist is, even the openmpi test program hello_c.c approx
> takes a minute to run. When I try in my virtual machine (linux) the
> same program takes less than a second to run.
> I've found that other users asked the same question but did not find
> any solution.
Windows itself is inherently slow. Adding in the emulation layer slows
it even more. So if you want to port the compiler to Windows native you
may find a bit faster execution but that may be debatable.
> Problem reports: http://cygwin.com/problems.html
Use the above when reporting issues, even in a question.
> FAQ: http://cygwin.com/faq/
Since speed of execution is a frequently asked question, you might find
some tidbits in the FAQ.
And don't forget about BLODA issues.
--
cyg Simple
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
next prev parent reply other threads:[~2016-12-18 17:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-18 14:56 Bahadır Öncel
2016-12-18 17:52 ` cyg Simple [this message]
2016-12-19 6:58 ` Marco Atzeri
2016-12-19 9:58 ` Marco Atzeri
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=529afec8-bbe5-19b4-8122-d610eb2a2eba@gmail.com \
--to=cygsimple@gmail.com \
--cc=cygwin@cygwin.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).