使用MPI在数组中查找元素？

Question

问题是在数组中找到一个元素，通知其他处理器停止。 因此，如果进程找到了元素，则其他人必须结束搜索。

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localData = new int[sendcounts[rank]];
    MPI_Scatterv(data, sendcounts, displs, MPI_INT,localData,sendcounts[rank], MPI_INT, 0, MPI_COMM_WORLD);

    //FIND ELEMENT KEYNUMBER IN LOCALDATA
    for(int i=0;i<sendcounts[rank];i++) {
        cout<<"Index: "<<i<<endl;
        if(localData[i] == keyNumber){
            found = 1;
            //INVIA TROVATO
            for(int j=0;j<numprocs;j++){
                if(j!=rank){
                    MPI_Isend(&found,1,MPI_INT,j,10,MPI_COMM_WORLD,&request);
                    cout<<"inviato"<<endl;
                }
            }
            MPI_Wait(&request,&status);
            break;
        }
        MPI_Irecv(&foundReceived,1,MPI_INT,MPI_ANY_SOURCE,10,MPI_COMM_WORLD,&request);
        cout<<"Valore Found: "<<foundReceived<<endl;
        if(foundReceived == 1){
            cout<<"si";
            break;
        }
    }
    ......
    ....
    ..
    .