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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpi.h"
#include "mpitestconf.h"
#ifdef HAVE_IOSTREAM
// Not all C++ compilers have iostream instead of iostream.h
#include <iostream>
#ifdef HAVE_NAMESPACE_STD
// Those that do need the std namespace; otherwise, a bare "cout"
// is likely to fail to compile
using namespace std;
#endif
#else
#include <iostream.h>
#endif
#include <string.h>
#include <stdio.h>
#include "mpitestcxx.h"
/* tests various miscellaneous functions. */
/* This is a C++ version of romio/test/misc.c */
#define VERBOSE 0
int main(int argc, char **argv)
{
int buf[1024], amode, mynod, len, i;
bool flag;
int errs = 0;
MPI::File fh;
MPI::Status status;
MPI::Datatype newtype;
MPI::Offset disp, offset;
MPI::Group group;
MPI::Datatype etype, filetype;
char datarep[25], *filename;
MTEST_VG_MEM_INIT(buf, 1024 * sizeof(int));
MPI::Init();
try {
mynod = MPI::COMM_WORLD.Get_rank();
/* process 0 takes the file name as a command-line argument and
* broadcasts it to other processes */
if (!mynod) {
i = 1;
while ((i < argc) && strcmp("-fname", *argv)) {
i++;
argv++;
}
if (i >= argc) {
len = (int) strlen("iotest.txt");
filename = new char[len + 1];
strcpy(filename, "iotest.txt");
} else {
argv++;
len = (int) strlen(*argv);
filename = new char[len + 1];
strcpy(filename, *argv);
}
MPI::COMM_WORLD.Bcast(&len, 1, MPI::INT, 0);
MPI::COMM_WORLD.Bcast(filename, len + 1, MPI::CHAR, 0);
} else {
MPI::COMM_WORLD.Bcast(&len, 1, MPI::INT, 0);
filename = new char[len + 1];
MPI::COMM_WORLD.Bcast(filename, len + 1, MPI::CHAR, 0);
}
fh = MPI::File::Open(MPI::COMM_WORLD, filename,
MPI::MODE_CREATE | MPI::MODE_RDWR, MPI::INFO_NULL);
fh.Write(buf, 1024, MPI::INT);
fh.Sync();
amode = fh.Get_amode();
#if VERBOSE
if (!mynod) {
cout << "testing File::_get_amode\n";
cout.flush();
}
#endif
if (amode != (MPI::MODE_CREATE | MPI::MODE_RDWR)) {
errs++;
cout << "amode is " << amode << ", should be " <<
(int) (MPI::MODE_CREATE | MPI::MODE_RDWR) << "\n";
cout.flush();
}
flag = fh.Get_atomicity();
if (flag) {
errs++;
cout << "atomicity is " << flag << ", should be false\n";
cout.flush();
}
#if VERBOSE
if (!mynod) {
cout << "setting atomic mode\n";
cout.flush();
}
#endif
try {
fh.Set_atomicity(true);
}
catch(MPI::Exception e) {
cout << "Exception thrown in Set_atomicity, Error: " << e.Get_error_string() << endl;
cout.flush();
}
try {
flag = fh.Get_atomicity();
}
catch(MPI::Exception e) {
cout << "Exception thrown in Get_atomicity, Error: " << e.Get_error_string() << endl;
cout.flush();
flag = false;
}
if (!flag) {
errs++;
cout << "atomicity is " << flag << ", should be true\n";
cout.flush();
}
fh.Set_atomicity(false);
#if VERBOSE
if (!mynod) {
cout << "reverting back to nonatomic mode\n";
cout.flush();
}
#endif
newtype = MPI::INT.Create_vector(10, 10, 20);
newtype.Commit();
fh.Set_view(1000, MPI::INT, newtype, "native", MPI::INFO_NULL);
#if VERBOSE
if (!mynod) {
cout << "testing File::_get_view\n";
cout.flush();
}
#endif
fh.Get_view(disp, etype, filetype, datarep);
if ((disp != 1000) || strcmp(datarep, "native")) {
errs++;
cout << "disp = " << disp << " datarep = " << datarep << ", should be 1000, native\n\n";
cout.flush();
}
#if VERBOSE
if (!mynod) {
cout << "testing File::_get_byte_offset\n";
cout.flush();
}
#endif
disp = fh.Get_byte_offset(10);
if (disp != (1000 + 20 * sizeof(int))) {
errs++;
cout << "byte offset = " << disp << ", should be " <<
(int) (1000 + 20 * sizeof(int)) << "\n";
cout.flush();
}
group = fh.Get_group();
#if VERBOSE
if (!mynod) {
cout << "testing File::_set_size\n";
cout.flush();
}
#endif
fh.Set_size(1000 + 15 * sizeof(int));
MPI::COMM_WORLD.Barrier();
fh.Sync();
disp = fh.Get_size();
if (disp != 1000 + 15 * sizeof(int)) {
errs++;
cout << "file size = " << disp << ", should be " <<
(int) (1000 + 15 * sizeof(int)) << "\n";
cout.flush();
}
#if VERBOSE
if (!mynod) {
cout << "seeking to eof and testing File::_get_position\n";
cout.flush();
}
#endif
fh.Seek(0, MPI_SEEK_END);
disp = fh.Get_position();
if (disp != 10) {
errs++;
cout << "file pointer posn = " << disp << ", should be 10\n\n";
cout.flush();
}
#if VERBOSE
if (!mynod) {
cout << "testing File::_get_byte_offset\n";
cout.flush();
}
#endif
offset = fh.Get_byte_offset(disp);
if (offset != (1000 + 20 * sizeof(int))) {
errs++;
cout << "byte offset = " << offset << ", should be " <<
(int) (1000 + 20 * sizeof(int)) << "\n";
cout.flush();
}
MPI::COMM_WORLD.Barrier();
#if VERBOSE
if (!mynod) {
cout << "testing File::_seek with MPI_SEEK_CUR\n";
cout.flush();
}
#endif
fh.Seek(-10, MPI_SEEK_CUR);
disp = fh.Get_position();
offset = fh.Get_byte_offset(disp);
if (offset != 1000) {
errs++;
cout << "file pointer posn in bytes = " << offset << ", should be 1000\n\n";
cout.flush();
}
#if VERBOSE
if (!mynod) {
cout << "preallocating disk space up to 8192 bytes\n";
cout.flush();
}
#endif
fh.Preallocate(8192);
#if VERBOSE
if (!mynod) {
cout << "closing the file and deleting it\n";
cout.flush();
}
#endif
fh.Close();
MPI::COMM_WORLD.Barrier();
if (!mynod)
MPI::File::Delete(filename, MPI::INFO_NULL);
newtype.Free();
filetype.Free();
group.Free();
delete[]filename;
}
catch(MPI::Exception e) {
cout << "Unhandled MPI exception caught: code " << e.
Get_error_code() << ", class " << e.Get_error_class() << ", string \"" << e.
Get_error_string() << "\"" << endl;
cout.flush();
}
catch(...) {
cout << "Unhandled exception caught.\n";
cout.flush();
}
MTest_Finalize(errs);
return 0;
}
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