int mca_sharedfp_sm_write (mca_io_ompio_file_t *fh, const void *buf, int count, struct ompi_datatype_t *datatype, ompi_status_public_t *status) { int ret = OMPI_SUCCESS; OMPI_MPI_OFFSET_TYPE offset = 0; long bytesRequested = 0; size_t numofBytes; struct mca_sharedfp_base_data_t *sh = NULL; mca_sharedfp_base_module_t * shared_fp_base_module = NULL; if( NULL == fh->f_sharedfp_data ){ if ( mca_sharedfp_sm_verbose ) { opal_output(ompi_sharedfp_base_framework.framework_output, "sharedfp_sm_write: opening the shared file pointer\n"); } shared_fp_base_module = fh->f_sharedfp; ret = shared_fp_base_module->sharedfp_file_open(fh->f_comm, fh->f_filename, fh->f_amode, fh->f_info, fh); if ( OMPI_SUCCESS != ret ) { opal_output(0,"sharedfp_sm_write - error opening the shared file pointer\n"); return ret; } } /* Calculate the number of bytes to write*/ opal_datatype_type_size ( &datatype->super, &numofBytes); bytesRequested = count * numofBytes; /*Retrieve the shared file data struct*/ sh = fh->f_sharedfp_data; if ( mca_sharedfp_sm_verbose ) { opal_output(ompi_sharedfp_base_framework.framework_output, "sharedfp_sm_write: Requested is %ld\n",bytesRequested); } /*Request the offset to write bytesRequested bytes*/ ret = mca_sharedfp_sm_request_position(sh,bytesRequested,&offset); offset /= sh->sharedfh->f_etype_size; if ( -1 != ret ) { if ( mca_sharedfp_sm_verbose ) { opal_output(ompi_sharedfp_base_framework.framework_output, "sharedfp_sm_write: fset received is %lld\n",offset); } /* Write to the file*/ ret = mca_common_ompio_file_write_at(sh->sharedfh,offset,buf,count,datatype,status); } return ret; }
int mca_sharedfp_individual_write (mca_io_ompio_file_t *fh, const void *buf, int count, struct ompi_datatype_t *datatype, ompi_status_public_t *status) { int ret = OMPI_SUCCESS; size_t numofbytes = 0; size_t totalbytes = 0; mca_sharedfp_individual_header_record *headnode = NULL; struct mca_sharedfp_base_data_t *sh = NULL; mca_sharedfp_base_module_t * shared_fp_base_module = NULL; if ( NULL == fh->f_sharedfp_data ) { if ( mca_sharedfp_individual_verbose ) { opal_output(ompi_sharedfp_base_framework.framework_output,"sharedfp_individual_write: opening the shared file pointer file\n"); } shared_fp_base_module = fh->f_sharedfp; ret = shared_fp_base_module->sharedfp_file_open(fh->f_comm, fh->f_filename, fh->f_amode, fh->f_info, fh); if (ret != OMPI_SUCCESS) { opal_output(0,"sharedfp_individual_write - error opening the shared file pointer\n"); return ret; } } /* Calculate the number of bytes of data that need to be written*/ opal_datatype_type_size ( &datatype->super, &numofbytes); totalbytes = count * numofbytes; /*Retrieve data structure for shared file pointer operations*/ sh = fh->f_sharedfp_data; headnode = (mca_sharedfp_individual_header_record*)sh->selected_module_data; if (headnode) { /*Insert metadata record into a queue*/ mca_sharedfp_individual_insert_metadata(OMPI_FILE_WRITE_SHARED, totalbytes, sh); /*Write the data into individual file*/ ret = mca_common_ompio_file_write_at ( headnode->datafilehandle, headnode->datafile_offset, buf, count, datatype, status); if ( OMPI_SUCCESS != ret ) { opal_output(0,"mca_sharedfp_individual_write: Error while writing the datafile \n"); return -1; } /* Update the datafileoffset*/ headnode->datafile_offset = headnode->datafile_offset + totalbytes; } return ret; }
int mca_io_ompio_file_write_at (ompi_file_t *fh, OMPI_MPI_OFFSET_TYPE offset, const void *buf, int count, struct ompi_datatype_t *datatype, ompi_status_public_t *status) { int ret = OMPI_SUCCESS; mca_io_ompio_data_t *data; data = (mca_io_ompio_data_t *) fh->f_io_selected_data; ret = mca_common_ompio_file_write_at (&data->ompio_fh, offset,buf,count,datatype,status); return ret; }