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Fix barriers in level3_thread

This commit is contained in:
Ali Saidi 2020-02-29 17:27:18 +00:00
parent 430ee31e66
commit 97ce6bbce2
1 changed files with 10 additions and 7 deletions
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17
driver/level3/level3_thread.c
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@ -351,8 +351,9 @@ static int inner_thread(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n,
/* 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;};
while (job[mypos].working[i][CACHE_LINE_SIZE * bufferside]) {YIELDING;};
STOP_RPCC(waiting1);
MB;
#if defined(FUSED_GEMM) && !defined(TIMING)
@ -395,10 +396,10 @@ static int inner_thread(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n,
}
#endif
WMB;
/* 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 */
@ -417,8 +418,9 @@ static int inner_thread(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n,
/* Wait until other region of B is initialized */
START_RPCC();
while(job[current].working[mypos][CACHE_LINE_SIZE * bufferside] == 0) {YIELDING;MB;};
while(job[current].working[mypos][CACHE_LINE_SIZE * bufferside] == 0) {YIELDING;};
STOP_RPCC(waiting2);
MB;
/* Apply kernel with local region of A and part of other region of B */
START_RPCC();
@ -434,8 +436,8 @@ 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;
WMB;
job[current].working[mypos][CACHE_LINE_SIZE * bufferside] &= 0;
}
}
} while (current != mypos);
@ -477,8 +479,8 @@ 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;
WMB;
job[current].working[mypos][CACHE_LINE_SIZE * bufferside] &= 0;
}
}
@ -497,10 +499,11 @@ static int inner_thread(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n,
START_RPCC();
for (i = 0; i < args -> nthreads; i++) {
for (js = 0; js < DIVIDE_RATE; js++) {
while (job[mypos].working[i][CACHE_LINE_SIZE * js] ) {YIELDING;MB;};
while (job[mypos].working[i][CACHE_LINE_SIZE * js] ) {YIELDING;};
}
}
STOP_RPCC(waiting3);
MB;
#ifdef TIMING
BLASLONG waiting = waiting1 + waiting2 + waiting3;
@ -705,7 +708,7 @@ EnterCriticalSection((PCRITICAL_SECTION)&level3_lock);
}
}
}
WMB;
/* Execute parallel computation */
exec_blas(nthreads, queue);
}