mpi
OpenMPI debugging with Valgrind and suppressions in OS X
I am writing a parallel code in C++ on my OS X (Snow Leopard) laptop, and I am trying to debug it with memchecker. I have successfully built OpenMPI with valgrind support with: configure --prefix=/opt[详细]
2023-03-28 16:47 分类:问答Totalview: is there a way to hardcode a break point?
I have a parallel (MPI) c/c++ program that from time to time leads to an error under certain conditions. Once the error occurs, a message is printed and the program exits; I\'d like to set a break poi[详细]
2023-03-28 07:12 分类:问答MPI process synchronization
I\'m still confused about the implementation of my program using MPI. This is my example: import mpi.*;[详细]
2023-03-27 12:24 分类:问答Multiple instances of program on multi-core machine
I am assuming a dual-core (2 cores per processors) machine with 2 processors for the questions that follow; so a total of 4 "cores". So some natural questions arose:[详细]
2023-03-26 15:03 分类:问答mpi.h: Using a type w/o defining it?
I\'m 开发者_StackOverflowtrying to translate the important parts of OpenMPI\'s mpi.h to the D programming language so I can call it from D.(HTOD didn\'t work at all.)I can\'t wrap my head around the f[详细]
2023-03-26 11:41 分类:问答MPI and D: Linker Options
I\'m trying to use MPI with the D programming language.D fully supports the C ABI and can link with and call any C code.I\'ve done the obvious stuff and translated the MPI header to D.I then translate[详细]
2023-03-26 10:40 分类:问答Traversing files on a distributed file system
I have a filesystem with a few hundred million files (several petabytes) and I want to get pretty much everything that stat would return and store it in some sort of database. Right now, we have an MP[详细]
2023-03-26 04:53 分类:问答MPI_Bcast: Efficiency advantages?
In MPI, is MPI_Bcast purely a convenience function or is there an efficiency advantage to using it instead of just looping over all ranks and sending the same message to all of them?[详细]
2023-03-25 23:45 分类:问答Parent Node Stalling On MPI_Barrier
I\'m new to MPI, and I am having some trouble implementing mpirun on a cluster of Mac OS X nodes running snow leopard.The issue that I\'m having involves MPI_Barrier().I have a simple function shown b[详细]
2023-03-25 15:03 分类:问答Getting started with writing MPI programs
In this coming semester, I am starting some research on large-scale distribu开发者_C百科ted computing with MPI. What I am looking for help with is the initial stages, specifically getting a solid deve[详细]
2023-03-25 11:48 分类:问答