System and Method for Collective Send Operations on a System Area Network

A computer program product comprising a computer useable medium having a computer readable program, wherein the computer readable program, when executed on a computing device, causes the computing device to:

• create a collective send queue data structure, the collective send queue data structure having one or more associated queue pairs for communicating with one or more endpoint devices;
• receive a single work request, from a consumer process running in a data processing system, specifying a collective send operation;
• post a queue element corresponding to the work request in the collective send queue data structure;
• and
• automatically replicate the queue element in send queues of the one or more queue pairs associated with the collective send queue data structure, wherein the send queues process the replicated queue element to thereby perform the collective send operation.

A system, comprising:

• a host node;
• and
• a channel adapter coupled to the host node, wherein the channel adapter:
• creates a collective send queue data structure, the collective send queue data structure having one or more associated queue pairs for communicating with one or more endpoint devices;
• receives a single work request, from a consumer process running in the host node, specifying a collective send operation;
• posts a queue element corresponding to the work request in the collective send queue data structure;
• and
• automatically replicates the queue element in send queues of the one or more queue pairs associated with the collective send queue data structure, wherein the send queues process the replicated queue element to thereby perform the collective send operation.