hi,
I have no comment about patching stuff, just want to report here that
docker image does not work in my
computer
docker run -ti ppc64le/xlc-ce
panic: standard_init_linux.go:175: exec user process caused "no such file
or directory" [recovered]
panic: standard_init_linux.go:175: exec user process caused "no such file
or directory"
Hai
On Tue, Dec 20, 2016 at 2:29 PM, James Ostrander <jlost.umich.edu> wrote:
> Sorry for the late reply, Jason.
>
> The XL compilers actually have a free community edition available here:
> http://www.ibm.com/developerworks/downloads/r/xlcpluslinux/. Registration
> is required and it is a "community edition," but IIRC the only difference
> is that -O5 is unavailable.
>
> There is also a Docker image containing the compilers:
> https://hub.docker.com/r/ppc64le/xlc-ce/?cm_mc_uid=
> 45583402832214744618583&cm_mc_sid_50200000=1482261441
> This could be used to set up a build bot if you were so inclined.
>
> Since XL compiler flags are different than GCC's, I don't think that proper
> support can be attained in less-maintenance-cumbersome way than the
> addition of a new compiler option in the build system. But let me know if
> you change your mind and I will submit the patch to you if/when it is made.
>
> On Wed, Dec 14, 2016 at 1:14 AM, Jason Swails <jason.swails.gmail.com>
> wrote:
>
> > On Tue, Dec 13, 2016 at 3:52 PM, James Ostrander <jlost.umich.edu>
> wrote:
> >
> > > Hi, I am trying to use AmberTools on an IBM POWER8 system (ppc64le).
> > IBM's
> > > compilers produce the fastest machine code for this system, so I always
> > try
> > > to use them first.
> > >
> > > AmberTools seems to have no direct support for the IBM XL compilers
> > > although it does offer out-of-the-box options for Intel, Clang, etc. I
> > also
> > > had a quick look at the build system and it seems non-trivial to
> manually
> > > configure or add your own (unless I'm just missing something!).
> > >
> > > So from there, I have a few questions:
> > > - I didn't see any options in configure --full-help that suggested a
> > direct
> > > compiler override. Am I missing something?
> > > - If not, are there any plans to support IBM's compilers?
> > > - If not, and someone offered you a patch that added support, would you
> > be
> > > willing to accept it into the official codebase?
> > > - If so, is there any specific guidance you can offer that would get
> > > someone started on adding the support?
> > >
> >
> > ​You can always try to configure Amber (I would suggest using the
> > --with-netcdf flag and use a pre-built NetCDF library if possible) and
> > specify the gnu compilers. Then replace the compiler binaries in
> config.h
> > with the IBM compiler names (and replace compiler flags if necessary).
> If
> > the IBM compilers have flags compatible with another supported compiler,
> > then you may be able to set the CC, FC, and CXX environment variables to
> > point at the IBM compilers while specifying the flag-compatible compiler
> > suite to configure.
> >
> > Note that these compilers are not supported because developers do not
> have
> > access to these compilers. And adding support is only a relatively small
> > part of the job -- the much bigger part is maintaining that support
> through
> > multiple versions of the various libraries, codes, and compiler versions.
> > It can sometimes be better to not have a feature at all than have some
> > untested code that *might* provide support.
> >
> > That's not to say there's no value, though. If there are small changes
> > necessary to improve IBM compiler support​
> >
> > that also improves the configure script as a whole (and does not
> introduce
> > maintenance headaches), I imagine such a patch would be welcome.
> >
> > HTH,
> > Jason
> >
> >
> > --
> > Jason M. Swails
> > _______________________________________________
> > AMBER mailing list
> > AMBER.ambermd.org
> > http://lists.ambermd.org/mailman/listinfo/amber
> >
>
>
>
> --
> *James Ostrander*
> *ITS Administrative Info Srvcs*
> _______________________________________________
> AMBER mailing list
> AMBER.ambermd.org
> http://lists.ambermd.org/mailman/listinfo/amber
>
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Received on Tue Dec 20 2016 - 14:00:03 PST
