void process() { CMessageBuffer msg; unsigned inputs = container.getInputs(); unsigned slaves = container.queryJob().querySlaves(); unsigned s; bool readSome=false, slaveReadSome; IntArray replyTags; for (s=0; s<slaves; s++) replyTags.append(0); while (inputs>1) { inputs--; for (s=0; s<slaves; s++) { rank_t sender; if (!receiveMsg(msg, RANK_ALL, replyTag, &sender)) return; replyTags.replace(msg.getReplyTag(), ((int)sender)-1); msg.read(slaveReadSome); if (slaveReadSome) readSome = true; } msg.clear().append(readSome); for (s=0; s<slaves; s++) { if (!queryJobChannel().queryJobComm().send(msg, ((rank_t) s+1), (mptag_t) replyTags.item(s), LONGTIMEOUT)) throw MakeActivityException(this, 0, "Failed to give result to slave"); } if (readSome) // got some, have told slaves to ignore rest, so finish break; } }