| // Start iteration: | | for (m = 0; m < l; m++){ | | count++; | | update_Z(Z, y, TH, A, G, r)
; | | update_TH(TH, THV, Z, A, G, r); | | update_KSI_AR(KSI_array, Z, TH); | | MPI_Gather (KSI_array, (2*k)+2, MPI_DOUBLE, KSI_rec, (2*k) + 2, MPI_DOUBLE, ROOT, MPI_COMM_WORLD); | | if(rank == ROOT){ | | double XX00=0.0; // XX00 = XX | | double XX01=0.0; // XX01 = XX | | double XZ00=0.0; // XZ0 = XZ0 | | double XZ10=0.0; // XZ1 = XZ1 | | // Retrieve x′x and x′Z from KSI_rec:: | | for(i = 0; i < size; i++) { | | XX00 += KSI_rec2*k+(2*k+2)*i; | | XX01 += KSI_rec(2*k+1)+(2*k+2)*i; | | } | | gsl_matrix_set(XX, 0, 0, XX00); | | gsl_matrix_set(XX, 0, 1, XX01); | | gsl_matrix_set(XX, 1, 0, XX01); | | gsl_matrix_set(XX, 1, 1, n); | | for(j = 0; j < k; j++) { | | XZ00=0.0; | | XZ10=0.0; | | for(i = 0; i < size; i++) { | | XZ00 += KSI_rec; | | XZ10 += KSI_rec; | | } | | gsl_matrix_set(XZ, 0, 0, XZ00); | | gsl_matrix_set(XZ, 1, 0, XZ10); | | } | | update_A_G(A, G, AV, GV, XX, XZ, unif, count, r); | | // Transfer A and G data into a buffer so that they can be broadcasted: | | for(i = 0; i < k; i++){ | | A_G_arrayi = gsl_vector_get(A, i); | | A_G_arrayi+k = gsl_vector_get(G, i);} | | } | | MPI_Bcast(A_G_array, 2*k, MPI_DOUBLE, ROOT, MPI_COMM_WORLD); | | // Transfer A and G received to a vector structure: | | for(i = 0; i < k; i++){ | | gsl_vector_set(A,i,A_G_arrayi); | | gsl_vector_set(G,i,A_G_arrayi+k); | | } | | }// End iteration |
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