int main(int argc, char *argv[])
{
int file_mode = O_RDONLY;
int fd;
parse_opts(argc, argv);
if (read_mode == 0)
file_mode = O_WRONLY;
else if (read_mode == 1)
file_mode = O_RDONLY;
else
usage(argv[0], EXIT_FAILURE);
fd = open(SYSFS_PATH, file_mode);
if (fd == -1)
err(EXIT_FAILURE, "%s", SYSFS_PATH);
if (read_mode)
if (read_byte_offset == -1)
dump_ec(fd);
else if (read_byte_offset < 0 ||
read_byte_offset >= EC_SPACE_SIZE)
usage(argv[0], EXIT_FAILURE);
else
read_ec_val(fd, read_byte_offset);
else
write_ec_val(fd, write_byte_offset, write_value);
close(fd);
exit(EXIT_SUCCESS);
}
void checkpoint(checkpoint_handle* check, grid_parms grid, double tnow, celltype1** smc, celltype2** ec, int write_count)
{
MPI_Status status;
MPI_Offset disp;
disp = (write_count*1*grid.tasks*sizeof(double))+ (grid.rank*sizeof(double));
CHECK(MPI_File_write_at(check->Time, disp, &tnow, 1, MPI_DOUBLE, &status));
dump_smc(grid, smc, check, write_count);
dump_ec(grid, ec, check, write_count);
}
