logo
down
shadow

MPICH vs OpenMPI


MPICH vs OpenMPI

By : negativerad
Date : October 28 2020, 08:00 PM
With these it helps Purpose
First, it is important to recognize how MPICH and Open-MPI are different, i.e. that they are designed to meet different needs. MPICH is supposed to be high-quality reference implementation of the latest MPI standard and the basis for derivative implementations to meet special purpose needs. Open-MPI targets the common case, both in terms of usage and network conduits.
code :


Share : facebook icon twitter icon
fault tolerance in MPICH/OpenMPI

fault tolerance in MPICH/OpenMPI


By : user2864922
Date : March 29 2020, 07:55 AM
it fixes the issue MPI - all implementations - have had the ability to continue after an error for a while. The default is to die - that is, the default error handler is MPI_ERRORS_ARE_FATAL - but that can be set (eg, see the discussion here). But the standard doesn't currently much beyond that; that is, it's hard to recover and continue after such an error. If your program is sufficiently simple - some sort of master-worker type of setup - it may be possible to continue this way.
The MPI forum is currently working on what will become MPI-3, and error handling and fault tolerance will be an important component of the new standard (there's a working group dedicated to the topic). Until that work is complete, however, the only way to get stronger fault tolerance out of MPI is to use earlier, nonstandard, extensions. FT-MPI was a project that developed a very robust MPI, but unfortuantely it's based on MPI1.2; a very early version of the standard. The claim here is that they're now working with OpenMPI, but I don't know what's become of that. There's MPICH-V, based on MPI2, but that's more checkpoint-restart based than what I think you're looking for.
error handlers in MPICH and OpenMPI

error handlers in MPICH and OpenMPI


By : trizzle
Date : March 29 2020, 07:55 AM
wish help you to fix your issue No, those are the only two error handlers defined by the standard currently.
The MPI forum is currently working on what will become MPI-3, and error handling and fault tolerance will be an important component of the new standard (there's a working group dedicated to the topic). Until that work is complete, however, the only way to get stronger fault tolerance out of MPI is to use earlier, nonstandard, extensions. FT-MPI was a project that developed a very robust MPI, but unfortuantely it's based on MPI1.2; a very early version of the standard. There's MPICH-V, based on MPI2, but that's more checkpoint-restart based.
Did I compile with OpenMPI or MPICH?

Did I compile with OpenMPI or MPICH?


By : Yaro AB
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , The following diagnostic procedure assumes that MPICH/MPICH2 and Open MPI are the only possible MPI implementations that you may have linked with. Other (especially commercial) MPI implementations do exist and may have different library names and/or library symbols.
First determine if you linked dynamically:
code :
% ldd my_executable
        linux-vdso.so.1 =>  (0x00007ffff972c000)
        libm.so.6 => /lib/libm.so.6 (0x00007f1f3c6cd000)
        librt.so.1 => /lib/librt.so.1 (0x00007f1f3c4c5000)
        libpthread.so.0 => /lib/libpthread.so.0 (0x00007f1f3c2a7000)
        libc.so.6 => /lib/libc.so.6 (0x00007f1f3bf21000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f1f3c969000)
% ( nm my_executable | grep MPIR_Free_contextid >/dev/null ) && echo "MPICH"
% ( nm my_executable | grep ompi_comm_set_name >/dev/null ) && echo "Open MPI"
Replace MPICH Installation by OpenMPI

Replace MPICH Installation by OpenMPI


By : Anne Duggan
Date : March 29 2020, 07:55 AM
may help you . Juste type make uninstall from the directory you compiled. That should do it. Regarding openMPI and the Intel compiler, better installing the compiler before ans using it to build the package, but that's not compulsory, using GCC will do as well.
CMake : Selecting mpich over openmpi

CMake : Selecting mpich over openmpi


By : user1683653
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , The default mpicc is not your choice. You can specify it manually in the cmake file, or update the $PATH variable with your mpicc included before the default one. Personally, I installed the mpich in the /usr/local/ directory. Regards
Related Posts Related Posts :
  • How to bring perforce client work space into sync with depot as of specific time of a specific date
  • How is a neural network called that is NOT convolutional
  • How to convert WSDL file to class file
  • iPhone Safari does not auto scale back down on portrait->landscape->portrait
  • how to build rabbitmq C client lib on windows
  • UITableView hide sectionindex but retain sections
  • Good .net4 profiler
  • UNIX Signal lost
  • How do I exclude the sources jar in mvn deploy?
  • RCP update site for multiple platforms
  • Setting checkstate on a ListWidgetItem
  • Learning programming language concepts
  • What is the command for Index optimization and update statistics for Oracle 10g and 11g?
  • Using Logger Filter with Not Equal condition Log4net
  • What is symbol table and how is it integrated into the executable?
  • 32-bit oracle 10g client to 64-bit oracle 10g server
  • Reducing memory usage by ISTIO side car
  • Azure Proxy Timing Out
  • Orders & Inventory DDD - Where should allocation/reservation be handled?
  • ngx bootstrap datepicker: how can i change weekdays?
  • Preserve whitespace and formatting for text returned from $.get jquery call
  • Web crawler update strategy
  • Looking for a fast hash-function
  • Unique ID for MS Word 2007 paragraph
  • What is the port for a hostname query?
  • GNUPLOT: 2d histogram from set of points
  • mac, netbeans 6.8, c++, sdl, opengl: compilation problems
  • Detect browser focus/out-of-focus via Google Chrome Extension
  • How to geocode a large number of addresses?
  • llvm-clang; function/variable names containing unicode charactrs
  • Gradle: Make a 3rd party jar available to local gradle repository
  • Real website/-application use cases where dependency injection was useful (excluding unit testing/mocks)?
  • Using XNamespace to create nicely formatted XML
  • How many elements can be held in a B-tree of order n?
  • What language should I learn to make 2D turn-based video games?
  • SQL Server CE - Internal error: Cannot open the shared memory region
  • djb2 Hash Function
  • Plone site files owner
  • What is CMS/Framework used in both of this website?
  • Keycloak authorization
  • How to Get ECI from ECGI
  • Access denied when starting SQL Server Express from command line
  • Is it possible for computers to tell time without a built in clock?
  • Are keys in B-tree nodes duplicated when the node is split?
  • How do chains work in Rainbow tables?
  • Pango-WARNING **: failed to choose a font, expect ugly output
  • Will a source-removal sort always return a maximal cycle?
  • Interesting metrics from JMX
  • Efficient way to ASCII encode UTF-8
  • Force IOException during file reading
  • problem with overriding autologin in spring security?
  • How to query the roster using JSJAC XMPP client
  • Checking if the application is running in NSIS before uninstalling
  • How does _mm_mwait work?
  • Best Practices for Managed SalesForce App Development?
  • Tiny C Compiler and Virus warnings
  • How do I programmatically add a widget to a container created from GtkBuilder?
  • limit concurrent user logins in Plone/Zope
  • Yii model tbl_* creates TblUserController and tblUser View
  • Eye-tracking for code editing
  • shadow
    Privacy Policy - Terms - Contact Us © 35dp-dentalpractice.co.uk