/***************************************************************************//**
* Parallel tile QR factorization - dynamic scheduling
**/
void plasma_pdgeqrf_quark(PLASMA_desc A, PLASMA_desc T, int ib)
{
int k, m, n;
int ldak, ldam;
int tempkm, tempkn, tempnn, tempmm;
for (k = 0; k < min(A.mt, A.nt); k++) {
tempkm = k == A.mt-1 ? A.m-k*A.mb : A.mb;
tempkn = k == A.nt-1 ? A.n-k*A.nb : A.nb;
ldak = BLKLDD(A, k);
double *dA = A(k, k);
double *dT = T(k, k);
#if defined(USE_OMPEXT)
omp_set_task_priority(1);
#endif
#pragma omp task depend(inout: dA[0:T.nb*T.nb]) depend(out:dT[0:ib*T.nb])
{
double tau[T.nb];
double work[ib * T.nb];
CORE_dgeqrt(tempkm, tempkn, ib, dA, ldak, dT, T.mb, &tau[0], &work[0]);
}
for (n = k+1; n < A.nt; n++) {
tempnn = n == A.nt-1 ? A.n-n*A.nb : A.nb;
double *dA = A(k, k);
double *dT = T(k, k);
double *dC = A(k, n);
#pragma omp task depend(in: dA[0:T.nb*T.nb], dT[0:ib*T.nb]) depend(inout:dC[0:T.nb*T.nb])
{
double work[T.nb * ib];
CORE_dormqr(PlasmaLeft, PlasmaTrans,
tempkm, tempnn, tempkm, ib,
dA, ldak,
dT, T.mb,
dC, ldak,
&work[0], T.nb);
}
}
for (m = k+1; m < A.mt; m++) {
tempmm = m == A.mt-1 ? A.m-m*A.mb : A.mb;
ldam = BLKLDD(A, m);
double *dA = A(k, k);
double *dB = A(m, k);
double *dT = T(m, k);
#pragma omp task depend(inout:dA[0:T.nb*T.nb], dB[0:T.nb*T.nb]) depend(out:dT[0:ib*T.nb])
{
double tau[T.nb];
double work[ib * T.nb];
CORE_dtsqrt(tempmm, tempkn, ib,
dA, ldak,
dB, ldam,
dT, T.mb, &tau[0], &work[0]);
}
for (n = k+1; n < A.nt; n++) {
tempnn = n == A.nt-1 ? A.n-n*A.nb : A.nb;
double *dA = A(k, n);
double *dB = A(m, n);
double *dV = A(m, k);
double *dT = T(m, k);
#pragma omp task depend(inout:dA[0:T.nb*T.nb], dB[0:T.nb*T.nb]) depend(in:dV[0:T.nb*T.nb], dT[0:ib*T.nb])
{
double work[ib * T.nb];
CORE_dtsmqr(PlasmaLeft, PlasmaTrans,
A.mb, tempnn, tempmm, tempnn, A.nb, ib,
dA, ldak,
dB, ldam,
dV, ldam,
dT, T.mb, &work[0], ib);
}
}
}
}
}
/***************************************************************************//**
* Parallel tile QR factorization - static scheduling
**/
void plasma_pdgeqrf(plasma_context_t *plasma)
{
PLASMA_desc A;
PLASMA_desc T;
PLASMA_sequence *sequence;
PLASMA_request *request;
int k, m, n;
int next_k;
int next_m;
int next_n;
int ldak, ldam;
int tempkm, tempkn, tempnn, tempmm;
int ib = PLASMA_IB;
double *work, *tau;
plasma_unpack_args_4(A, T, sequence, request);
if (sequence->status != PLASMA_SUCCESS)
return;
work = (double*)plasma_private_alloc(plasma, ib*T.nb, T.dtyp);
tau = (double*)plasma_private_alloc(plasma, A.nb, A.dtyp);
ss_init(A.mt, A.nt, -1);
k = 0;
n = PLASMA_RANK;
while (n >= A.nt) {
k++;
n = n-A.nt+k;
}
m = k;
while (k < min(A.mt, A.nt) && n < A.nt) {
next_n = n;
next_m = m;
next_k = k;
next_m++;
if (next_m == A.mt) {
next_n += PLASMA_SIZE;
while (next_n >= A.nt && next_k < min(A.mt, A.nt)) {
next_k++;
next_n = next_n-A.nt+next_k;
}
next_m = next_k;
}
tempkm = k == A.mt-1 ? A.m-k*A.mb : A.mb;
tempkn = k == A.nt-1 ? A.n-k*A.nb : A.nb;
tempnn = n == A.nt-1 ? A.n-n*A.nb : A.nb;
tempmm = m == A.mt-1 ? A.m-m*A.mb : A.mb;
ldak = BLKLDD(A, k);
ldam = BLKLDD(A, m);
if (n == k) {
if (m == k) {
ss_cond_wait(k, k, k-1);
CORE_dgeqrt(
tempkm, tempkn, ib,
A(k, k), ldak,
T(k, k), T.mb,
tau, work);
ss_cond_set(k, k, k);
}
else {
ss_cond_wait(m, k, k-1);
CORE_dtsqrt(
tempmm, tempkn, ib,
A(k, k), ldak,
A(m, k), ldam,
T(m, k), T.mb,
tau, work);
ss_cond_set(m, k, k);
}
}
else {
if (m == k) {
ss_cond_wait(k, k, k);
ss_cond_wait(k, n, k-1);
CORE_dormqr(
PlasmaLeft, PlasmaTrans,
tempkm, tempnn, tempkm, ib,
A(k, k), ldak,
T(k, k), T.mb,
A(k, n), ldak,
work, T.nb);
}
else {
ss_cond_wait(m, k, k);
ss_cond_wait(m, n, k-1);
CORE_dtsmqr(
PlasmaLeft, PlasmaTrans,
A.nb, tempnn, tempmm, tempnn, A.nb, ib,
A(k, n), ldak,
A(m, n), ldam,
A(m, k), ldam,
T(m, k), T.mb,
work, ib);
ss_cond_set(m, n, k);
}
}
n = next_n;
m = next_m;
k = next_k;
}
plasma_private_free(plasma, work);
plasma_private_free(plasma, tau);
ss_finalize();
}
