897744cdeb
1. implement and enable the non-described buffer operations. I will send out a more detailed explanation separately. However, this mode of operation (which is now the default) significantly reduces message size during startup. If you want the described buffers, set the mca param "-mca dss_describe_buffer 1". 2. revise the xcast system to support both linear and binomial tree broadcast methods. Since we are seeing scenarios where the binomiall tree can cause problems, I have made the linear method the default. To run with the binomial tree, set the mca param "-mca oob_xcast_mode binomial". 3. add some detailed timing reports to the xcast operation. These are enabled via "-mca oob_xcast_timing 1". 4. add some more unit tests for the dss and gpr (focused on support for the non-described buffer) This commit was SVN r12722.
131 строка
4.0 KiB
C
131 строка
4.0 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "orte_config.h"
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#include "orte/mca/errmgr/errmgr.h"
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#include "orte/dss/dss_internal.h"
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int orte_dss_peek(orte_buffer_t *buffer, orte_data_type_t *type,
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orte_std_cntr_t *num_vals)
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{
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int ret;
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orte_buffer_t tmp;
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orte_std_cntr_t n=1;
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orte_data_type_t local_type;
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/* check for errors */
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if (buffer == NULL) {
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ORTE_ERROR_LOG(ORTE_ERR_BAD_PARAM);
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return ORTE_ERR_BAD_PARAM;
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}
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/* Double check and ensure that there is data left in the buffer. */
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if (buffer->unpack_ptr >= buffer->base_ptr + buffer->bytes_used) {
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ORTE_ERROR_LOG(ORTE_ERR_UNPACK_READ_PAST_END_OF_BUFFER);
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*type = ORTE_NULL;
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*num_vals = 0;
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return ORTE_ERR_UNPACK_READ_PAST_END_OF_BUFFER;
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}
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/* if this is NOT a fully described buffer, then that is as much as
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* we can do - there is no way we can tell the caller what type is
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* in the buffer since that info wasn't stored.
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*/
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if (ORTE_DSS_BUFFER_FULLY_DESC != buffer->type) {
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ORTE_ERROR_LOG(ORTE_ERR_UNKNOWN_DATA_TYPE);
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*type = ORTE_UNDEF;
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*num_vals = 0;
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return ORTE_ERR_UNKNOWN_DATA_TYPE;
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}
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/* cheat: unpack from a copy of the buffer -- leaving all the
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original pointers intact */
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tmp = *buffer;
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if (ORTE_SUCCESS != (ret = orte_dss_get_data_type(&tmp, &local_type))) {
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ORTE_ERROR_LOG(ret);
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*type = ORTE_NULL;
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*num_vals = 0;
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return ret;
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}
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if (ORTE_STD_CNTR != local_type) { /* if the length wasn't first, then error */
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ORTE_ERROR_LOG(ORTE_ERR_UNPACK_FAILURE);
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*type = ORTE_NULL;
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*num_vals = 0;
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return ORTE_ERR_UNPACK_FAILURE;
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}
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if (ORTE_SUCCESS != (ret = orte_dss_unpack_std_cntr(&tmp, num_vals, &n, ORTE_STD_CNTR))) {
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ORTE_ERROR_LOG(ret);
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*type = ORTE_NULL;
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*num_vals = 0;
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return ret;
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}
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if (ORTE_SUCCESS != (ret = orte_dss_get_data_type(&tmp, type))) {
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ORTE_ERROR_LOG(ret);
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*type = ORTE_NULL;
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*num_vals = 0;
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}
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return ret;
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}
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int orte_dss_peek_type(orte_buffer_t *buffer, orte_data_type_t *type)
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{
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int ret;
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orte_buffer_t tmp;
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/* check for errors */
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if (buffer == NULL) {
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ORTE_ERROR_LOG(ORTE_ERR_BAD_PARAM);
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return ORTE_ERR_BAD_PARAM;
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}
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/* if this is NOT a fully described buffer, then there isn't anything
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* we can do - there is no way we can tell the caller what type is
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* in the buffer since that info wasn't stored.
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*/
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if (ORTE_DSS_BUFFER_FULLY_DESC != buffer->type) {
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ORTE_ERROR_LOG(ORTE_ERR_UNKNOWN_DATA_TYPE);
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*type = ORTE_UNDEF;
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return ORTE_ERR_UNKNOWN_DATA_TYPE;
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}
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/* Double check and ensure that there is data left in the buffer. */
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if (buffer->unpack_ptr >= buffer->base_ptr + buffer->bytes_used) {
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ORTE_ERROR_LOG(ORTE_ERR_UNPACK_READ_PAST_END_OF_BUFFER);
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*type = ORTE_UNDEF;
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return ORTE_ERR_UNPACK_READ_PAST_END_OF_BUFFER;
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}
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/* cheat: unpack from a copy of the buffer -- leaving all the
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original pointers intact */
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tmp = *buffer;
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if (ORTE_SUCCESS != (ret = orte_dss_get_data_type(&tmp, type))) {
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ORTE_ERROR_LOG(ret);
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*type = ORTE_UNDEF;
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return ret;
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}
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return ORTE_SUCCESS;
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}
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