DeinoMPI Forum

Hello,

A newbie question:

I have installed DeinoMPI, and added the include, lib paths to Dev-C++ options.

The problem is that I get linker errors and when trying to compile with gcc. I know I have to compile with mpi.lib.. What is the correct parameter to add to DevCpp compiler options? Everything that I have tried did not work..

Thank you in advance

I downloaded Dev-C++ 4.9.9.2 and created a console application in c:\temp\DevCPP.  You can only compile C appications.  If you want to use the C++ interface then you must use the Microsoft Visual C++ compiler.  Here are the two files used to successfully compile an MPI application using Dev-C++:

Here is main.c:

#include <mpi.h>
#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
    int rank, size;
   
    MPI_Init(&argc, &argv);
    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Comm_size(MPI_COMM_WORLD, &size);
   
    printf("I am %d of %d\n", rank, size);
    fflush(stdout);
   
    MPI_Finalize();
    return 0;
}

Here is mpi_sample.dev:

[Project]
FileName=mpi_sample.dev
Name=mpi_sample
UnitCount=1
Type=1
Ver=1
ObjFiles=
Includes="C:\Program Files\DeinoMPI\include"
Libs="C:\Program Files\DeinoMPI\lib"
PrivateResource=
ResourceIncludes=
MakeIncludes=
Compiler=
CppCompiler=
Linker="../../Program Files/DeinoMPI/lib/mpi.lib"_@@_
IsCpp=0
Icon=
ExeOutput=
ObjectOutput=
OverrideOutput=0
OverrideOutputName=mpi_sample.exe
HostApplication=
Folders=
CommandLine=
UseCustomMakefile=0
CustomMakefile=
IncludeVersionInfo=0
SupportXPThemes=0
CompilerSet=0
CompilerSettings=0000000000000000000000

[Unit1]
FileName=main.c
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=

[VersionInfo]
Major=0
Minor=1
Release=1
Build=1
LanguageID=1033
CharsetID=1252
CompanyName=
FileVersion=
FileDescription=Developed using the Dev-C++ IDE
InternalName=
LegalCopyright=
LegalTrademarks=
OriginalFilename=
ProductName=
ProductVersion=
AutoIncBuildNr=0

 

Thank you very much! Keep up the good work!

Hi,
Have you try doing this same in C++?
I created a c++ projcet, linked both cxx.lib and mpi.lib.

But during compilation of the following code:

#include mpicxx.h
#include cstdlib
#include iostream

using namespace std;

int main(int argc, char *argv[])
{
int rank, size;

MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);

cout "Hello, I am " rank ". Size = " size endl;

MPI_Finalize();
return 0;
}

I've got lot of errors.

Thanks for any suggestions.

Sorry for my english:P

Include mpi.h and mpicxx.h will be included for you.  This code compiled and ran for me:

#include "mpi.h"

#include <cstdlib>

#include <iostream>

using namespace std;

int main(int argc, char *argv[])

{

int rank, size;

MPI_Init(&argc, &argv);

MPI_Comm_rank(MPI_COMM_WORLD, &rank);

MPI_Comm_size(MPI_COMM_WORLD, &size);

cout << "Hello, I am " << rank << ". Size = " << size << endl;

MPI_Finalize();

return 0;

}

Hi,
In your .dev file, you change the following values:
Includes="...\MPICH2\include"
Libs="...\MPICH2\lib"
...
Linker="...\MPICH2\lib\mpi.lib"

Here, "...\" should be your actual directory for mpich.

However, I have a related question:
Whenever I create a new project in Dev-C++, I have to change the .dev file again (add Includes, Libs, and Linker) for mpi. Is there an efficient way to do that?
It seemed that you added these in Dev-C++ options. Could you show me how you did?
Thanks.

rs