Hello,

Is it possible to call within a D driver program library functions which are programmed in C/C++ with the message passing interface (MPI)? I want to write a program which makes use of the ParMetis library (http://glaros.dtc.umn.edu/gkhome/metis/parmetis/overview).

Supposing it is possible, to compile and run C/MPI programs, wrapper commands are used, such as mpicc and mpirun. What would be done in D?

Thank you,
Dominic Jones

Dominic Jones Wrote:

> Hello,
> 
> Is it possible to call within a D driver program library functions which are programmed in C/C++ with the message passing interface (MPI)? I want to write a program which makes use of the ParMetis library (http://glaros.dtc.umn.edu/gkhome/metis/parmetis/overview).
> 
> Supposing it is possible, to compile and run C/MPI programs, wrapper commands are used, such as mpicc and mpirun. What would be done in D?

Looks like MPI is just another C interface. You just need to write binding for it and call it.

Dominic Jones Wrote:

> Hello,
> 
> Is it possible to call within a D driver program library functions which are programmed in C/C++ with the message passing interface (MPI)? I want to write a program which makes use of the ParMetis library (http://glaros.dtc.umn.edu/gkhome/metis/parmetis/overview).
> 
> Supposing it is possible, to compile and run C/MPI programs, wrapper commands are used, such as mpicc and mpirun. What would be done in D?
> 
> Thank you,
> Dominic Jones

It is possible and I suppose everything not passing and retrieving messages would be done in D. There is probably a bunch of work involved in converting the headers, but there isn't any reason D can't call into MPI.