C++ (Cpp) MCA_PML_OB1_SEND_REQUEST_RESET Examples

Example #1

File: pml_ob1_progress.c Project: 00datman/ompi

int mca_pml_ob1_progress(void)
{
    int i, queue_length = opal_list_get_size(&mca_pml_ob1.send_pending);
    int j, completed_requests = 0;
    bool send_succedded;

#if OPAL_CUDA_SUPPORT
    mca_pml_ob1_process_pending_cuda_async_copies();
#endif /* OPAL_CUDA_SUPPORT */

    if( OPAL_LIKELY(0 == queue_length) )
        return 0;

    for( i = 0; i < queue_length; i++ ) {
        mca_pml_ob1_send_pending_t pending_type = MCA_PML_OB1_SEND_PENDING_NONE;
        mca_pml_ob1_send_request_t* sendreq;
        mca_bml_base_endpoint_t* endpoint;

        sendreq = get_request_from_send_pending(&pending_type);
        if(OPAL_UNLIKELY(NULL == sendreq))
            break;

        switch(pending_type) {
        case MCA_PML_OB1_SEND_PENDING_NONE:
            assert(0);
            return 0;
        case MCA_PML_OB1_SEND_PENDING_SCHEDULE:
            if( mca_pml_ob1_send_request_schedule_exclusive(sendreq) ==
                OMPI_ERR_OUT_OF_RESOURCE ) {
                return 0;
            }
            completed_requests++;
            break;
        case MCA_PML_OB1_SEND_PENDING_START:
            MCA_PML_OB1_SEND_REQUEST_RESET(sendreq);
            endpoint = sendreq->req_endpoint;
            send_succedded = false;
            for(j = 0; j < (int)mca_bml_base_btl_array_get_size(&endpoint->btl_eager); j++) {
                mca_bml_base_btl_t* bml_btl;
                int rc;

                /* select a btl */
                bml_btl = mca_bml_base_btl_array_get_next(&endpoint->btl_eager);
                rc = mca_pml_ob1_send_request_start_btl(sendreq, bml_btl);
                if( OPAL_LIKELY(OMPI_SUCCESS == rc) ) {
                    send_succedded = true;
                    completed_requests++;
                    break;
                }
            }
            if( false == send_succedded ) {
                add_request_to_send_pending(sendreq, MCA_PML_OB1_SEND_PENDING_START, true);
            }
        }
    }
    return completed_requests;
}

Example #2

File: pml_ob1_sendreq.c Project: IanYXXL/A1

void mca_pml_ob1_send_request_process_pending(mca_bml_base_btl_t *bml_btl)
{
    int rc, i, s = opal_list_get_size(&mca_pml_ob1.send_pending);

    /* advance pending requests */
    for(i = 0; i < s; i++) {
        mca_pml_ob1_send_pending_t pending_type = MCA_PML_OB1_SEND_PENDING_NONE;
        mca_pml_ob1_send_request_t* sendreq;
        mca_bml_base_btl_t *send_dst;

        sendreq = get_request_from_send_pending(&pending_type);
        if(OPAL_UNLIKELY(NULL == sendreq))
            break;

        switch(pending_type) {
        case MCA_PML_OB1_SEND_PENDING_SCHEDULE:
            rc = mca_pml_ob1_send_request_schedule_exclusive(sendreq);
            if(OMPI_ERR_OUT_OF_RESOURCE == rc) {
                return;
            }
            break;
        case MCA_PML_OB1_SEND_PENDING_START:
            send_dst = mca_bml_base_btl_array_find(
                    &sendreq->req_endpoint->btl_eager, bml_btl->btl);
            if (NULL == send_dst) {
                /* Put request back onto pending list and try next one. */
                add_request_to_send_pending(sendreq,
                        MCA_PML_OB1_SEND_PENDING_START, true);
            } else {
                MCA_PML_OB1_SEND_REQUEST_RESET(sendreq);
                rc = mca_pml_ob1_send_request_start_btl(sendreq, send_dst);
                if (OMPI_ERR_OUT_OF_RESOURCE == rc) {
                    /* No more resources on this btl so prepend to the pending
                     * list to minimize reordering and give up for now. */
                    add_request_to_send_pending(sendreq,
                            MCA_PML_OB1_SEND_PENDING_START, false);
                    return;
                }
            }
            break;
        default:
            opal_output(0, "[%s:%d] wrong send request type\n",
                    __FILE__, __LINE__);
            break;
        }
    }
}