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authorJulian Brown <julian@codesourcery.com>2019-09-03 08:57:39 -0700
committerThomas Schwinge <thomas@codesourcery.com>2020-03-03 12:50:41 +0100
commit05ec021fd503c3dabf5c87f43113103e806def43 (patch)
treed6526c15d86a107061ce59aed3dad1edeed87869
parentca3308a527a4ca8d1e48f8bd9055289553136154 (diff)
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[og9] Enable worker partitioning for AMD GCN
gcc/ * config/gcn/gcn.c (gcn_goacc_validate_dims): Remove no-flag_worker-partitioning assertion. (TARGET_GOACC_WORKER_PARTITIONING): Define target hook to true. * config/gcn/gcn.opt (flag_worker_partitioning): Change default to 1. libgomp/ * plugin/plugin-gcn.c (gcn_exec): Change default number of workers to 16. (cherry picked from openacc-gcc-9-branch commit 79e7692178509467f622ecc649cda6aa8717406a)
-rw-r--r--gcc/ChangeLog.omp7
-rw-r--r--gcc/config/gcn/gcn.c4
-rw-r--r--gcc/config/gcn/gcn.opt2
-rw-r--r--libgomp/ChangeLog.omp5
-rw-r--r--libgomp/plugin/plugin-gcn.c4
5 files changed, 16 insertions, 6 deletions
diff --git a/gcc/ChangeLog.omp b/gcc/ChangeLog.omp
index 2b7f616..dde474d 100644
--- a/gcc/ChangeLog.omp
+++ b/gcc/ChangeLog.omp
@@ -1,3 +1,10 @@
+2019-09-05 Julian Brown <julian@codesourcery.com>
+
+ * config/gcn/gcn.c (gcn_goacc_validate_dims): Remove
+ no-flag_worker-partitioning assertion.
+ (TARGET_GOACC_WORKER_PARTITIONING): Define target hook to true.
+ * config/gcn/gcn.opt (flag_worker_partitioning): Change default to 1.
+
2019-09-05 Cesar Philippidis <cesar@codesourcery.com>
Julian Brown <julian@codesourcery.com>
diff --git a/gcc/config/gcn/gcn.c b/gcc/config/gcn/gcn.c
index ca9321b..b7cf6f0 100644
--- a/gcc/config/gcn/gcn.c
+++ b/gcc/config/gcn/gcn.c
@@ -4659,8 +4659,6 @@ gcn_goacc_validate_dims (tree decl, int dims[], int fn_level,
/* FIXME: remove -facc-experimental-workers when they're ready. */
int max_workers = flag_worker_partitioning ? 16 : 1;
- gcc_assert (!flag_worker_partitioning);
-
/* The vector size must appear to be 64, to the user, unless this is a
SEQ routine. The real, internal value is always 1, which means use
autovectorization, but the user should not see that. */
@@ -6035,6 +6033,8 @@ print_operand (FILE *file, rtx x, int code)
#define TARGET_GOACC_REDUCTION gcn_goacc_reduction
#undef TARGET_GOACC_VALIDATE_DIMS
#define TARGET_GOACC_VALIDATE_DIMS gcn_goacc_validate_dims
+#undef TARGET_GOACC_WORKER_PARTITIONING
+#define TARGET_GOACC_WORKER_PARTITIONING true
#undef TARGET_HARD_REGNO_MODE_OK
#define TARGET_HARD_REGNO_MODE_OK gcn_hard_regno_mode_ok
#undef TARGET_HARD_REGNO_NREGS
diff --git a/gcc/config/gcn/gcn.opt b/gcc/config/gcn/gcn.opt
index 90d35f42..2fd3996 100644
--- a/gcc/config/gcn/gcn.opt
+++ b/gcc/config/gcn/gcn.opt
@@ -62,7 +62,7 @@ Target Report RejectNegative Var(flag_bypass_init_error)
bool flag_worker_partitioning = false
macc-experimental-workers
-Target Report Var(flag_worker_partitioning) Init(0)
+Target Report Var(flag_worker_partitioning) Init(1)
int stack_size_opt = -1
diff --git a/libgomp/ChangeLog.omp b/libgomp/ChangeLog.omp
index c7ef40e..438bd59 100644
--- a/libgomp/ChangeLog.omp
+++ b/libgomp/ChangeLog.omp
@@ -1,5 +1,10 @@
2019-09-05 Julian Brown <julian@codesourcery.com>
+ * plugin/plugin-gcn.c (gcn_exec): Change default number of workers to
+ 16.
+
+2019-09-05 Julian Brown <julian@codesourcery.com>
+
* testsuite/libgomp.oacc-fortran/lib-13.f90: End data region after
wait API calls.
diff --git a/libgomp/plugin/plugin-gcn.c b/libgomp/plugin/plugin-gcn.c
index 099f70b..f0b22eb 100644
--- a/libgomp/plugin/plugin-gcn.c
+++ b/libgomp/plugin/plugin-gcn.c
@@ -3244,10 +3244,8 @@ gcn_exec (struct kernel_info *kernel, size_t mapnum, void **hostaddrs,
problem size, so let's do a reasonable number of single-worker gangs.
64 gangs matches a typical Fiji device. */
- /* NOTE: Until support for middle-end worker partitioning is merged, use 1
- for the default number of workers. */
if (dims[0] == 0) dims[0] = 64; /* Gangs. */
- if (dims[1] == 0) dims[1] = 1; /* Workers. */
+ if (dims[1] == 0) dims[1] = 16; /* Workers. */
/* The incoming dimensions are expressed in terms of gangs, workers, and
vectors. The HSA dimensions are expressed in terms of "work-items",