Re: [OMPI users] Open MPI MPI-OpenMP Hybrid Binding Question

Dave Love writes: > PETSc can't be using MPI-3 because I'm in the process of fixing rpm > packaging for the current version and building it with ompi 1.6. It would be folly for PETSc to ship with a hard dependency on MPI-3. You wouldn't be able to package it with ompi-1.6, for example. But that

Re: [OMPI users] cleaning up old ROMIO (MPI-IO) drivers

On 01/21/2016 05:59 AM, Dave Love wrote: [Catching up...] Rob Latham writes: Do you use any of the other ROMIO file system drivers? If you don't know if you do, or don't know what a ROMIO file system driver is, then it's unlikely you are using one. What if you use a driver and it's not on

Re: [OMPI users] Raspberry Pi 2 Beowulf Cluster for OpenFOAM

Hi Spencer, Here’s a good explanation. http://www.jeffgeerling.com/blogs/jeff-geerling/controlling-pwr-act-leds-raspberry-pi If you type sudo cat /sys/class/leds/led1/trigger at the bash prompt it will list all the options available. I use the cpu0 trigger. Regards, Steve Pivotal Solutions y

Re: [OMPI users] Strange behaviour OpenMPI in Fortran

On Jan 25, 2016, at 7:21 AM, Dave Love wrote: > > You might expect the f90 module to reveal the error anyway. > Unfortunately which routines it covers depends on the compiler and OMPI > versions in a way I don't understand -- can someone explain? For > instance, it won't work with the RHEL6 syst

Re: [OMPI users] Raspberry Pi 2 Beowulf Cluster for OpenFOAM

Steve, I am curious as to how you set the cpu0 activity on the LED0. Do you have a quick read on how you did that? Thanks, Spencer From: users on behalf of Steve O'Hara Sent: Sunday, January 24, 2016 2:39 PM To: Open MPI Users Subject: Re: [OMPI users]

Re: [OMPI users] Strange behaviour OpenMPI in Fortran

in this case, stat is an integer (scalar) but an array of integer is expected. I guess a fortran 90 can detect that. I also guess it can detect ptr was used unitialized in rank 0. my 0.02 US$ Gilles On Monday, January 25, 2016, Dave Love wrote: > Jeff Hammond > writes: > > > You will find the

Re: [OMPI users] MPI, Fortran, and GET_ENVIRONMENT_VARIABLE

Thomas Jahns writes: > just a side-note: the correct way to query the hostname is in this > thread on stackoverflow and various Unix/POSIX/Linux books in C: > > > > I'd sugge

Re: [OMPI users] Strange behaviour OpenMPI in Fortran

Jeff Hammond writes: > You will find the MPI Fortran 2008 bindings to be significantly better > w.r.t. MPI types. See e.g. MPI 3.1 section 17.2.5 where it describes > TYPE(MPI_Status), which means that the status object is a first-class type > in the Fortran 2008 interface, rather than being an

Re: [OMPI users] Open MPI MPI-OpenMP Hybrid Binding Question

Jeff Hammond writes: > MPC is a great idea, although it poses some challenges w.r.t. globals and > such (however, see below). Unfortunately, "MPC conforms to the POSIX > Threads, OpenMP 3.1 and MPI 1.3 standards" ( > http://mpc.hpcframework.paratools.com/), it does not do me much good (I'm a > h

Re: [OMPI users] segmentation fault with java MPI

Thanks Marko, I will check that tomorrow. I did pretty much the same thing, but without testfile0, that looks pretty useless here. fwiw, in the past we saw some random crashes and the root cause was MPI did not retain some objects, and bad things happened when the garbage collector ran. btw, are

Re: [OMPI users] how to benchmark a server with openmpi?

Another canonical benchmarking suite can be found at http://www.nas.nasa.gov/publications/npb.html > On 24 Jan 2016, at 20:51 , Ibrahim Ikhlawi wrote: > > Thanks for reply. > > But I want to have an imagination about the behaviour of my server. Therefore > I need an Code which I can run it on

Re: [OMPI users] segmentation fault with java MPI

Hi Gilles,   I checked out openMPI Master 2 weeks ago. JVM is: java version "1.7.0_25" Java(TM) SE Runtime Environment (build 1.7.0_25-b15) Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode) command line is: mpirun -np 2 java -jar MPI_open.jar   The segmentation fault is in the