You can Google or go to http://www.mcs.anl.gov/research/projects/mpi/www/www3/ to get documentation for how to use the following commands: MPI_File_get_size MPI_File_open MPI_File_read MPI_File_write MPI_File_close These are the ones you need to do a straightforward conversion of your code. Best, Jeff On Fri, Nov 16, 2012 at 11:34 AM, Muhammad Zulfikar Handana <[email protected]> wrote:

dear, i have a little confused about MPI i/o, because iam new for this programming. i have some question. if i want make some program with this code

1)

int get_size(char *filename) { struct stat buf; stat(filename,&buf); int j =buf.st_size;

return j; }

2) key = fopen(key_file, "rb"); fread(Kunci, pk, 1, key); for(i=0;i<Nk*4;i++) Key[i]=Kunci[i];

3) hasil = fopen (file_akhir, "wb"); for (k=0;k<(((block-1)*16)+pad);k++) { fputc(output[k], hasil); } fclose (hasil);

how to translate that code into MPI i / o ? thanks a lot for your attention

Regards

Handana

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-- Jeff Hammond Argonne Leadership Computing Facility University of Chicago Computation Institute [email protected] / (630) 252-5381 http://www.linkedin.com/in/jeffhammond https://wiki.alcf.anl.gov/parts/index.php/User:Jhammond