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

This commit is contained in:
Craig Donner 2018-06-25 13:53:11 +01:00
parent 62cf769aa6
commit 0144068537
1 changed files with 13 additions and 14 deletions
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17
driver/level3/level3_thread.c
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@ -344,12 +344,6 @@ 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 */
@ -387,11 +381,16 @@ 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 */
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;
}
}
/* Get regions of B from other threads and apply kernel */
current = mypos;
@ -426,7 +425,7 @@ 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;
}
}
@ -469,7 +468,7 @@ static int inner_thread(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n,
/* 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;
}
}