Hi Josh,
Thanks a lot for your email.
I just tested it again and faced the old mistake again:
*"Underlying MPI implementation does not provide requested threading level*
* Unable to support requested level of X10
threading; exiting"*
I am struggling to understand why this happens. I opened x10rt_mpi.cc file
and saw the part of the code that generates the error, which is when
level_required
!= level_provided, where level_required is set according to what
getenv(X10RT_MPI_THREAD_SERIALIZED)
returns.
Am I maybe setting the variable in a wrong way? I am executing a script
with a line
export X10RT_MPI_THREAD_SERIALIZED=1
Thanks,
Marina
On Wed, Jul 27, 2016 at 6:29 PM, Joshua J Milthorpe <jjmil...@us.ibm.com>
wrote:
> Hi Marina,
>
> the message you found regarding X10RT_MPI_THREAD_MULTIPLE is now out of
> date :-(
>
> Since X10 2.5.2, MPI_THREAD_MULTIPLE is the default threading level, but
> it is possible to request MPI_THREAD_SERIALIZED by setting the environment
> variable X10RT_MPI_THREAD_SERIALIZED. In this case, X10 will serialize all
> calls to MPI functions through a global lock (in accordance with the rules
> for MPI_THREAD_SERIALIZED).
>
> https://xtenlang.atlassian.net/browse/XTENLANG-3490
>
> Could you please try running with X10RT_MPI_THREAD_SERIALIZED=1 and let us
> know the result?
>
> Cheers,
> *Josh Milthorpe*
> Post Doctoral Researcher
> Cognitive Systems: Learning to Reason
> IBM Research
> ------------------------------
> *Phone:* 1-914-945-2209
> *E-mail:* *jjmil...@us.ibm.com* <jjmil...@us.ibm.com>
> 1101 Kitchawan Rd
> Yorktown Heights, NY 10598
> United States
>
>
> [image: Inactive hide details for Marina Andric ---07/27/2016 12:13:16
> PM---Hi again, I came across]Marina Andric ---07/27/2016 12:13:16 PM---Hi
> again, I came across
>
> From: Marina Andric <marina.and...@imtlucca.it>
> To: Mailing list for users of the X10 programming language <
> x10-users@lists.sourceforge.net>
> Date: 07/27/2016 12:13 PM
> Subject: Re: [X10-users] Problem with compiling programs to C++ backend
> after building x10 from source
> ------------------------------
>
>
>
> Hi again,
>
> I came across
>
> "Only if X10_STATIC_THREADS=1 X10_NTHREADS=1 and
> X10_NUM_IMMEDIATE_THREADS=0 will we use single-threaded MPI modes."
>
> on one of the pages dedicated to X10.
>
> I now initialized the variables and I'm not anymore facing the error that
> provided and requested threading levels do not match.
> However, my code uses Clocks for synchronization and I get runtime error
>
> *ClockUseException: Clocks are not compatible
> with static threads. *
>
> I guess that I've hit the wall now and can't proceed in this direction.
>
> Or is there a possible workaround to make Clocks work in mpi thread
> serialized setting ?
>
> Thank you,
> Marina
>
>
>
>
>
>
>
>
>
> On Wed, Jul 27, 2016 at 3:26 PM, Marina Andric <
> *marina.and...@imtlucca.it* <marina.and...@imtlucca.it>> wrote:
>
> Hi,
>
> Thanks a lot Marco for the help. Yes, I initially copied the
> executable, then I built it on the cluster and now it works, almost :)
>
> Works well until the moment I compile the program with *-x10rt mpi*
> option. The program is compiled and executable is generated, but it is not
> running. The error states:
>
> * "Underlying MPI implementation does not
> provide requested threading level*
> * Unable to support requested level of X10
> threading; exiting"*
>
> (the whole output is attached)
>
> I found this page:
> *https://sourceforge.net/p/x10/mailman/message/33490796/*
> <https://sourceforge.net/p/x10/mailman/message/33490796/> and started
> looking into X10 runtime variables (X10RT_MPI_THREAD_MULTIPLE,
> X10_STATIC_THREADS) and played a bit with those but with no success..
>
> On my linux laptop it works with -x10rt mpi option, with no errors. In
> both cases, on my machine and the cluster, MPI_THREAD_MULTIPLE is set to
> no.
>
> Does someone has an idea how to solve this?
>
> Thank you,
> Marina
>
>
>
>
>
>
>
>
>
>
>
>
>
> On Tue, Jul 26, 2016 at 1:00 AM, Marco Bungart <*m.bung...@gmx.net*
> <m.bung...@gmx.net>> wrote:
> Hi Maina,
>
> looks like you have not built the program on the cluster. Did you just
> copy the executable? This will in general not work. You should download
> and compile/install X10 on the cluster as well. The easiest way would
> be
> to build X10 from source (tutorial found here:
> *http://x10-lang.org/x10-development/building-x10-from-source.html*
> <http://x10-lang.org/x10-development/building-x10-from-source.html>).
> After that, re-compile your program on the cluster and execute it.
>
> Cheers,
> Marco
>
> Am 25.07.2016 um 18:11 schrieb Marina Andric:
> >
> > Thanks a lot Marco, this was something I neglected :) the program is
> > compiling/executing now on my machine.
> >
> > 'Im still having a problem on the cluster. I get compilation error
> stating:
> >
> > x10.dist/stdlib/lib/libx10.so: undefined reference to
> 'memcpy@GLIBC_2.14'
> > x10.dist/stdlib/lib/libx10.so: undefined reference to
> > 'clock_gettime@GLIBC_2.17'
> >
> > Does somebody know the possible origins of this problem? Do I maybe
> need
> > to load some additional modules on the cluster, except gcc and mpi?
> >
> > Warm regards,
> > Marina
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > On Sun, Jul 24, 2016 at 11:48 PM, Marco Bungart <*m.bung...@gmx.net*
> <m.bung...@gmx.net>
> > <mailto:*m.bung...@gmx.net* <m.bung...@gmx.net>>> wrote:
> >
> > Hi,
> >
> > have you tried running "$> ./a.out" instead of "$> a.out"? Some
> systems
> > distinguish between system-wide executable (i.e. executable
> located in
> > one of the paths specified in the $PATH environment variable) and
> > executables in the current folder (i.e. ".").
> >
> > Cheers,
> > Marco
> >
> > Am 24.07.2016 um 21:22 schrieb Marina Andric:
> > > Hi all,
> > >
> > > I am trying to run an x10 program on a cluster. The cluster
> supports
> > > only MPI based communication between nodes so I built the
> latest x10
> > > source (version 2.6.0) with option -DX10RT_MPI=true and the
> build was
> > > successful.
> > >
> > > My program works when it's compiled to java (via x10c) but it
> doesn't
> > > work when it is compiled to c++ (via x10c++).
> > >
> > > For example, when
> > >
> > >> x10.dist/bin/x10c++ hello.x10 (creates a.out)
> > >> a.out
> > >
> > > the outcome is a.out: command not found.
> > >
> > > I tested a bit around, with -o option, -x10rt sockets (mpi) and
> > nothing
> > > seemed to change. I eventually built x10 without
> -DX10RT_MPI=true and
> > > the problem is the same, also with the x10 version 2.5.4.
> > >
> > > I was building and testing on my local linux machine and I
> checked all
> > > the program versions and they seem to be ok:
> > >
> > > ant 1.9.3
> > > g++ 4.8.4
> > >
> > > Can someone please say if I'm missing something?
> > >
> > > Thank you,
> > > Marina
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
>
> ------------------------------------------------------------------------------
> > > What NetFlow Analyzer can do for you? Monitors network
> bandwidth
> > and traffic
> > > patterns at an interface-level. Reveals which users, apps, and
> > protocols are
> > > consuming the most bandwidth. Provides multi-vendor support for
> > NetFlow,
> > > J-Flow, sFlow and other flows. Make informed decisions using
> > capacity planning
> > > reports.*http://sdm.link/zohodev2dev*
> <http://sdm.link/zohodev2dev>
> > >
> > >
> > >
> > > _______________________________________________
> > > X10-users mailing list
> > > *X10-users@lists.sourceforge.net*
> <X10-users@lists.sourceforge.net>
> > <mailto:*X10-users@lists.sourceforge.net*
> <X10-users@lists.sourceforge.net>>
> > > *https://lists.sourceforge.net/lists/listinfo/x10-users*
> <https://lists.sourceforge.net/lists/listinfo/x10-users>
> > >
> >
> > ---
> > Diese E-Mail wurde von Avast Antivirus-Software auf Viren
> geprüft.
> > *https://www.avast.com/antivirus*
> <https://www.avast.com/antivirus>
> >
> >
> >
>
> ------------------------------------------------------------------------------
> > What NetFlow Analyzer can do for you? Monitors network bandwidth
> and
> > traffic
> > patterns at an interface-level. Reveals which users, apps, and
> > protocols are
> > consuming the most bandwidth. Provides multi-vendor support for
> NetFlow,
> > J-Flow, sFlow and other flows. Make informed decisions using
> > capacity planning
> > reports.*http://sdm.link/zohodev2dev*
> <http://sdm.link/zohodev2dev>
> > _______________________________________________
> > X10-users mailing list
> > *X10-users@lists.sourceforge.net*
> <X10-users@lists.sourceforge.net> <mailto:
> *X10-users@lists.sourceforge.net* <X10-users@lists.sourceforge.net>>
> > *https://lists.sourceforge.net/lists/listinfo/x10-users*
> <https://lists.sourceforge.net/lists/listinfo/x10-users>
> >
> >
> >
> >
> >
>
> ------------------------------------------------------------------------------
> > What NetFlow Analyzer can do for you? Monitors network bandwidth and
> traffic
> > patterns at an interface-level. Reveals which users, apps, and
> protocols are
> > consuming the most bandwidth. Provides multi-vendor support for
> NetFlow,
> > J-Flow, sFlow and other flows. Make informed decisions using
> capacity planning
> > reports.*http://sdm.link/zohodev2dev* <http://sdm.link/zohodev2dev>
> >
> >
> >
> > _______________________________________________
> > X10-users mailing list
> > *X10-users@lists.sourceforge.net* <X10-users@lists.sourceforge.net>
> > *https://lists.sourceforge.net/lists/listinfo/x10-users*
> <https://lists.sourceforge.net/lists/listinfo/x10-users>
> >
>
> ---
> Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft.
> *https://www.avast.com/antivirus* <https://www.avast.com/antivirus>
>
>
>
>
> ------------------------------------------------------------------------------
> What NetFlow Analyzer can do for you? Monitors network bandwidth and
> traffic
> patterns at an interface-level. Reveals which users, apps, and
> protocols are
> consuming the most bandwidth. Provides multi-vendor support for
> NetFlow,
> J-Flow, sFlow and other flows. Make informed decisions using capacity
> planning
> reports.*http://sdm.link/zohodev2dev* <http://sdm.link/zohodev2dev>
> _______________________________________________
> X10-users mailing list
> *X10-users@lists.sourceforge.net* <X10-users@lists.sourceforge.net>
> *https://lists.sourceforge.net/lists/listinfo/x10-users*
> <https://lists.sourceforge.net/lists/listinfo/x10-users>
>
>
> ------------------------------------------------------------------------------
> What NetFlow Analyzer can do for you? Monitors network bandwidth and
> traffic
> patterns at an interface-level. Reveals which users, apps, and protocols
> are
> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
> J-Flow, sFlow and other flows. Make informed decisions using capacity
> planning
> reports.
> http://sdm.link/zohodev2dev_______________________________________________
> X10-users mailing list
> X10-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/x10-users
>
>
>
>
> ------------------------------------------------------------------------------
> What NetFlow Analyzer can do for you? Monitors network bandwidth and
> traffic
> patterns at an interface-level. Reveals which users, apps, and protocols
> are
> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
> J-Flow, sFlow and other flows. Make informed decisions using capacity
> planning
> reports.http://sdm.link/zohodev2dev
> _______________________________________________
> X10-users mailing list
> X10-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/x10-users
>
>
------------------------------------------------------------------------------
What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
patterns at an interface-level. Reveals which users, apps, and protocols are
consuming the most bandwidth. Provides multi-vendor support for NetFlow,
J-Flow, sFlow and other flows. Make informed decisions using capacity planning
reports.http://sdm.link/zohodev2dev
_______________________________________________
X10-users mailing list
X10-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/x10-users
