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Revert "Rewrite &= -> = and simplify the initial blocking phase."

This commit is contained in:
Martin Kroeker 2018-07-03 21:42:28 +02:00 committed by GitHub
parent a83f01e0ee
commit 5f2a3c05cd
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 13 deletions
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27
driver/level3/level3_thread.c
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@ -344,6 +344,12 @@ static int inner_thread(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n,
div_n = (n_to - n_from + DIVIDE_RATE - 1) / DIVIDE_RATE;
for (js = n_from, bufferside = 0; js < n_to; js += div_n, bufferside ++) {
/* Make sure if no one is using workspace */
START_RPCC();
for (i = 0; i < args -> nthreads; i++)
while (job[mypos].working[i][CACHE_LINE_SIZE * bufferside]) {YIELDING;MB;};
STOP_RPCC(waiting1);
#if defined(FUSED_GEMM) && !defined(TIMING)
/* Fused operation to copy region of B into workspace and apply kernel */
@ -381,15 +387,10 @@ static int inner_thread(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n,
}
#endif
for (i = mypos_n * nthreads_m; i < (mypos_n + 1) * nthreads_m; i++) {
/* Make sure if no one is using workspace */
START_RPCC();
while (job[mypos].working[i][CACHE_LINE_SIZE * bufferside]) {YIELDING;MB;};
STOP_RPCC(waiting1);
/* Set flag so other threads can access local region of B */
/* Set flag so other threads can access local region of B */
for (i = mypos_n * nthreads_m; i < (mypos_n + 1) * nthreads_m; i++)
job[mypos].working[i][CACHE_LINE_SIZE * bufferside] = (BLASLONG)buffer[bufferside];
WMB;
}
WMB;
}
/* Get regions of B from other threads and apply kernel */
@ -425,13 +426,13 @@ static int inner_thread(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n,
/* Clear synchronization flag if this thread is done with other region of B */
if (m_to - m_from == min_i) {
job[current].working[mypos][CACHE_LINE_SIZE * bufferside] = 0;
job[current].working[mypos][CACHE_LINE_SIZE * bufferside] &= 0;
WMB;
}
}
} while (current != mypos);
/* Iterate through steps of m
/* Iterate through steps of m
* Note: First step has already been finished */
for(is = m_from + min_i; is < m_to; is += min_i){
min_i = m_to - is;
@ -461,14 +462,14 @@ static int inner_thread(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n,
sa, (FLOAT *)job[current].working[mypos][CACHE_LINE_SIZE * bufferside],
c, ldc, is, js);
STOP_RPCC(kernel);
#ifdef TIMING
ops += 2 * min_i * MIN(range_n[current + 1] - js, div_n) * min_l;
#endif
/* Clear synchronization flag if this thread is done with region of B */
if (is + min_i >= m_to) {
job[current].working[mypos][CACHE_LINE_SIZE * bufferside] = 0;
job[current].working[mypos][CACHE_LINE_SIZE * bufferside] &= 0;
WMB;
}
}