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Date: Fri, 2 Sep 2022 09:37:57 +0200
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To: gcc-patches , Jakub Jelinek ,
Gerald Pfeifer
From: Tobias Burnus
Subject: [wwwdocs] gcc-13/changes.html + projects/gomp/: OpenMP update
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Update the OpenMP status for features that were added in the last months.
Comments/suggestions? Okay to commit?
Tobias
-----------------
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gcc-13/changes.html + projects/gomp/: OpenMP update
* htdocs/gcc-13/changes.html: Update OpenMP entry; fix html syntax.
* htdocs/projects/gomp/index.html: Update OpenMP 5.x implementation status;
add missing item from libgomp.texi + flip two items to have same order as
the .texi.
htdocs/gcc-13/changes.html | 42 ++++++++++++++++++++++++++++++++---------
htdocs/projects/gomp/index.html | 40 +++++++++++++++++++++++++++++----------
2 files changed, 63 insertions(+), 19 deletions(-)
diff --git a/htdocs/gcc-13/changes.html b/htdocs/gcc-13/changes.html
index c4189c1b..24b97515 100644
--- a/htdocs/gcc-13/changes.html
+++ b/htdocs/gcc-13/changes.html
@@ -31,7 +31,6 @@ a work-in-progress.
The support for the cr16-elf
, tilegx*-linux
, tilepro*-linux
,
hppa[12]*-*-hpux10*
, hppa[12]*-*-hpux11*
and m32c-rtems
configurations has been removed.
-
@@ -41,14 +40,39 @@ a work-in-progress.
- OpenMP
- - The following OpenMP 5.1 features have been added: the
-
omp_all_memory
reserved locator, the inoutset
- modifier to the depend
clause, the nowait
- clause for the taskwait
directive and the
- omp_target_is_accessible
, omp_target_memcpy_async
,
- omp_target_memcpy_rect_async
and
- omp_get_mapped_ptr
API routines. Fortran now supports
- non-rectangular loop nests, which were added for C/C++ in GCC 11.
+ -
+ Reverse offload is now supported and the all clauses to the
+
requires
directive are now accepted; however, the
+ requires_offload
, unified_address
+ and unified_shared_memory
clauses cause that the
+ only available device is the initial device (the host).
+
+ -
+ The following OpenMP 5.1 features have been added: the
+
omp_all_memory
reserved locator, the inoutset
+ modifier to the depend
clause, the nowait
+ clause for the taskwait
directive and the
+ omp_target_is_accessible
, omp_target_memcpy_async
,
+ omp_target_memcpy_rect_async
and
+ omp_get_mapped_ptr
API routines. Fortran now supports
+ non-rectangular loop nests, which were added for C/C++ in GCC 11.
+
+ -
+ Initial support for OpenMP 5.2 features have been added: Support for
+
firstprivate
and allocate
clauses on the
+ scope
construct and the OpenMP 5.2 syntax of the
+ linear
clause; the new enum/constants
+ omp_initial_device
and omp_invalid_device
; and
+ optionally omitting the map-type in target enter/exit data
.
+ The enter
clause (as alias for to
) has been added
+ to the declare target
directive.
+
+ -
+ For user defined allocators requesting high bandwidth or large capacity
+ memspaces or interleaved partitioning, the memkind library is used,
+ if available at runtime.
+
-
diff --git a/htdocs/projects/gomp/index.html b/htdocs/projects/gomp/index.html
index edafa0d3..92cbd9ab 100644
--- a/htdocs/projects/gomp/index.html
+++ b/htdocs/projects/gomp/index.html
@@ -307,8 +307,17 @@ than listed, depending on resolved corner cases and optimizations.
requires directive |
- GCC 9 GCC 12 – |
- (atomic_default_mem_order ) (dynamic_allocators ) rest parsing only |
+
+ GCC 9
+ GCC 12
+ GCC 13
+ |
+
+ (atomic_default_mem_order )
+ (dynamic_allocators )
+ complete but no non-host devices provides unified_address ,
+ unified_shared_memory or reverse_offload
+ |
conditional modifier to lastprivate clause |
@@ -417,8 +426,14 @@ than listed, depending on resolved corner cases and optimizations.
ancestor modifier on device clause |
- GCC 12 |
- Reverse offload unsupported |
+
+ GCC 12
+ GCC 13
+ |
+
+ Reverse offload unsupported
+ See comment for requires
+ |
Mapping C/C++ pointer variables and to assign the address of device memory mapped by an array section |
@@ -705,6 +720,12 @@ than listed, depending on resolved corner cases and optimizations.
No |
|
+
+ Pointer predetermined firstprivate getting initialized
+ to address of matching mapped list item per 5.1, Sect. 2.21.7.2 |
+ No |
+ |
+
ompt_sync_region_t enum additions |
No |
@@ -730,7 +751,6 @@ than listed, depending on resolved corner cases and optimizations.
No |
|
-
@@ -862,8 +882,8 @@ than listed, depending on resolved corner cases and optimizations.
|
- Default map type for map clause in target enter/exit data |
- No |
+ Default map-type for map clause in target enter/exit data |
+ GCC 13 |
|
@@ -888,16 +908,16 @@ than listed, depending on resolved corner cases and optimizations.
Conforming device numbers and omp_initial_device and omp_invalid_device enum/PARAMETER |
- No |
+ GCC 13 |
|
- interop_types in any position of the modifier list for the init clause of the interop construct |
+ Initial value of default-device-var ICV with OMP_TARGET_OFFLOAD=mandatory |
No |
|
- Initial value of default-device-var ICV with OMP_TARGET_OFFLOAD=mandatory |
+ interop_types in any position of the modifier list for the init clause of the interop construct |
No |
|