[SYCL][Graph] Add support for fill and memset nodes in graphs (#11472)

- Adds support for fill and memset nodes in graphs.
- Supported on Level Zero only for now.
- Adds E2E and unit tests for these new node types.
- Minor modifications due to renaming of some UR functions.

---------

Co-authored-by: Maxime France-Pillois <[email protected]>
Co-authored-by: Ewan Crawford <[email protected]>

sycl/doc/design/CommandGraph.md

@@ -37,12 +37,14 @@ with the following entry-points:
 | `urCommandBufferFinalizeExp`                 | No more commands can be appended, makes command-buffer ready to enqueue on a command-queue. |
 | `urCommandBufferAppendKernelLaunchExp`       | Append a kernel execution command to command-buffer. |
 | `urCommandBufferAppendUSMMemcpyExp`          | Append a USM memcpy command to the command-buffer. |
+| `urCommandBufferAppendUSMFillExp`            | Append a USM fill command to the command-buffer. |
 | `urCommandBufferAppendMemBufferCopyExp`      | Append a mem buffer copy command to the command-buffer. |
 | `urCommandBufferAppendMemBufferWriteExp`     | Append a memory write command to a command-buffer object. |
 | `urCommandBufferAppendMemBufferReadExp`      | Append a memory read command to a command-buffer object. |
 | `urCommandBufferAppendMemBufferCopyRectExp`  | Append a rectangular memory copy command to a command-buffer object. |
 | `urCommandBufferAppendMemBufferWriteRectExp` | Append a rectangular memory write command to a command-buffer object. |
 | `urCommandBufferAppendMemBufferReadRectExp`  | Append a rectangular memory read command to a command-buffer object. |
+| `urCommandBufferAppendMemBufferFillExp`      | Append a memory fill command to a command-buffer object. |
 | `urCommandBufferEnqueueExp`                  | Submit command-buffer to a command-queue for execution. |
 
 See the [UR EXP-COMMAND-BUFFER](https://oneapi-src.github.io/unified-runtime/core/EXP-COMMAND-BUFFER.html)
@@ -347,6 +349,8 @@ The types of commands which are unsupported, and lead to this exception are:
   This corresponds to a memory buffer write command.
 * `handler::copy(src, dest)` or `handler::memcpy(dest, src)` - Where both `src` and
    `dest` are USM pointers. This corresponds to a USM copy command.
+* `handler::memset(ptr, value, numBytes)` - This corresponds to a USM memory
+  fill command.
 
 Note that `handler::copy(src, dest)` where both `src` and `dest` are an accessor
 is supported, as a memory buffer copy command exists in the OpenCL extension.

sycl/include/sycl/detail/pi.def

@@ -176,6 +176,8 @@ _PI_API(piextCommandBufferMemBufferWrite)
 _PI_API(piextCommandBufferMemBufferWriteRect)
 _PI_API(piextCommandBufferMemBufferRead)
 _PI_API(piextCommandBufferMemBufferReadRect)
+_PI_API(piextCommandBufferMemBufferFill)
+_PI_API(piextCommandBufferFillUSM)
 _PI_API(piextEnqueueCommandBuffer)
 
 _PI_API(piextUSMPitchedAlloc)

sycl/include/sycl/detail/pi.h

@@ -147,9 +147,10 @@
 // 14.38 Change PI_MEM_ADVICE_* values to flags for use in bitwise operations.
 // 14.39 Added PI_EXT_INTEL_DEVICE_INFO_ESIMD_SUPPORT device info query.
 // 14.40 Add HIP _pi_mem_advice alises to match the PI_MEM_ADVICE_CUDA* ones.
+// 14.41 Added piextCommandBufferMemBufferFill & piextCommandBufferFillUSM
 
 #define _PI_H_VERSION_MAJOR 14
-#define _PI_H_VERSION_MINOR 40
+#define _PI_H_VERSION_MINOR 41
 
 #define _PI_STRING_HELPER(a) #a
 #define _PI_CONCAT(a, b) _PI_STRING_HELPER(a.b)
@@ -2441,7 +2442,7 @@ __SYCL_EXPORT pi_result piextCommandBufferMemBufferReadRect(
     pi_buff_rect_offset buffer_offset, pi_buff_rect_offset host_offset,
     pi_buff_rect_region region, size_t buffer_row_pitch,
     size_t buffer_slice_pitch, size_t host_row_pitch, size_t host_slice_pitch,
-    void *ptr, pi_uint32 num_events_in_wait_list,
+    void *ptr, pi_uint32 num_sync_points_in_wait_list,
     const pi_ext_sync_point *sync_point_wait_list,
     pi_ext_sync_point *sync_point);
 
@@ -2458,7 +2459,7 @@ __SYCL_EXPORT pi_result piextCommandBufferMemBufferReadRect(
 /// \param sync_point The sync_point associated with this memory operation.
 __SYCL_EXPORT pi_result piextCommandBufferMemBufferWrite(
     pi_ext_command_buffer command_buffer, pi_mem buffer, size_t offset,
-    size_t size, const void *ptr, pi_uint32 num_events_in_wait_list,
+    size_t size, const void *ptr, pi_uint32 num_sync_points_in_wait_list,
     const pi_ext_sync_point *sync_point_wait_list,
     pi_ext_sync_point *sync_point);
 
@@ -2483,7 +2484,43 @@ __SYCL_EXPORT pi_result piextCommandBufferMemBufferWriteRect(
     pi_buff_rect_offset buffer_offset, pi_buff_rect_offset host_offset,
     pi_buff_rect_region region, size_t buffer_row_pitch,
     size_t buffer_slice_pitch, size_t host_row_pitch, size_t host_slice_pitch,
-    const void *ptr, pi_uint32 num_events_in_wait_list,
+    const void *ptr, pi_uint32 num_sync_points_in_wait_list,
+    const pi_ext_sync_point *sync_point_wait_list,
+    pi_ext_sync_point *sync_point);
+
+/// API to append a mem buffer fill command to the command-buffer.
+/// \param command_buffer The command-buffer to append onto.
+/// \param buffer is the location to fill the data.
+/// \param pattern pointer to the pattern to fill the buffer with.
+/// \param pattern_size size of the pattern in bytes.
+/// \param offset Offset into the buffer to fill from.
+/// \param size fill size in bytes.
+/// \param num_sync_points_in_wait_list The number of sync points in the
+/// provided wait list.
+/// \param sync_point_wait_list A list of sync points that this command must
+/// wait on.
+/// \param sync_point The sync_point associated with this memory operation.
+__SYCL_EXPORT pi_result piextCommandBufferMemBufferFill(
+    pi_ext_command_buffer command_buffer, pi_mem buffer, const void *pattern,
+    size_t pattern_size, size_t offset, size_t size,
+    pi_uint32 num_sync_points_in_wait_list,
+    const pi_ext_sync_point *sync_point_wait_list,
+    pi_ext_sync_point *sync_point);
+
+/// API to append a USM fill command to the command-buffer.
+/// \param command_buffer The command-buffer to append onto.
+/// \param ptr pointer to the USM allocation to fill.
+/// \param pattern pointer to the pattern to fill ptr with.
+/// \param pattern_size size of the pattern in bytes.
+/// \param size fill size in bytes.
+/// \param num_sync_points_in_wait_list The number of sync points in the
+/// provided wait list.
+/// \param sync_point_wait_list A list of sync points that this command must
+/// wait on.
+/// \param sync_point The sync_point associated with this memory operation.
+__SYCL_EXPORT pi_result piextCommandBufferFillUSM(
+    pi_ext_command_buffer command_buffer, void *ptr, const void *pattern,
+    size_t pattern_size, size_t size, pi_uint32 num_sync_points_in_wait_list,
     const pi_ext_sync_point *sync_point_wait_list,
     pi_ext_sync_point *sync_point);
 

sycl/plugins/cuda/pi_cuda.cpp

@@ -1137,6 +1137,27 @@ pi_result piextCommandBufferMemBufferWriteRect(
       NumSyncPointsInWaitList, SyncPointWaitList, SyncPoint);
 }
 
+pi_result piextCommandBufferMemBufferFill(
+    pi_ext_command_buffer CommandBuffer, pi_mem Buffer, const void *Pattern,
+    size_t PatternSize, size_t Offset, size_t Size,
+    pi_uint32 NumSyncPointsInWaitList,
+    const pi_ext_sync_point *SyncPointWaitList, pi_ext_sync_point *SyncPoint) {
+  return pi2ur::piextCommandBufferMemBufferFill(
+      CommandBuffer, Buffer, Pattern, PatternSize, Offset, Size,
+      NumSyncPointsInWaitList, SyncPointWaitList, SyncPoint);
+}
+
+pi_result piextCommandBufferFillUSM(pi_ext_command_buffer CommandBuffer,
+                                    void *Ptr, const void *Pattern,
+                                    size_t PatternSize, size_t Size,
+                                    pi_uint32 NumSyncPointsInWaitList,
+                                    const pi_ext_sync_point *SyncPointWaitList,
+                                    pi_ext_sync_point *SyncPoint) {
+  return pi2ur::piextCommandBufferFillUSM(
+      CommandBuffer, Ptr, Pattern, PatternSize, Size, NumSyncPointsInWaitList,
+      SyncPointWaitList, SyncPoint);
+}
+
 pi_result piextEnqueueCommandBuffer(pi_ext_command_buffer CommandBuffer,
                                     pi_queue Queue,
                                     pi_uint32 NumEventsInWaitList,

sycl/plugins/hip/pi_hip.cpp

@@ -1145,6 +1145,27 @@ pi_result piextCommandBufferMemBufferWriteRect(
       NumSyncPointsInWaitList, SyncPointWaitList, SyncPoint);
 }
 
+pi_result piextCommandBufferMemBufferFill(
+    pi_ext_command_buffer CommandBuffer, pi_mem Buffer, const void *Pattern,
+    size_t PatternSize, size_t Offset, size_t Size,
+    pi_uint32 NumSyncPointsInWaitList,
+    const pi_ext_sync_point *SyncPointWaitList, pi_ext_sync_point *SyncPoint) {
+  return pi2ur::piextCommandBufferMemBufferFill(
+      CommandBuffer, Buffer, Pattern, PatternSize, Offset, Size,
+      NumSyncPointsInWaitList, SyncPointWaitList, SyncPoint);
+}
+
+pi_result piextCommandBufferFillUSM(pi_ext_command_buffer CommandBuffer,
+                                    void *Ptr, const void *Pattern,
+                                    size_t PatternSize, size_t Size,
+                                    pi_uint32 NumSyncPointsInWaitList,
+                                    const pi_ext_sync_point *SyncPointWaitList,
+                                    pi_ext_sync_point *SyncPoint) {
+  return pi2ur::piextCommandBufferFillUSM(
+      CommandBuffer, Ptr, Pattern, PatternSize, Size, NumSyncPointsInWaitList,
+      SyncPointWaitList, SyncPoint);
+}
+
 pi_result piextEnqueueCommandBuffer(pi_ext_command_buffer CommandBuffer,
                                     pi_queue Queue,
                                     pi_uint32 NumEventsInWaitList,

sycl/plugins/level_zero/pi_level_zero.cpp

@@ -1303,6 +1303,27 @@ pi_result piextCommandBufferMemBufferWriteRect(
       NumSyncPointsInWaitList, SyncPointWaitList, SyncPoint);
 }
 
+pi_result piextCommandBufferMemBufferFill(
+    pi_ext_command_buffer CommandBuffer, pi_mem Buffer, const void *Pattern,
+    size_t PatternSize, size_t Offset, size_t Size,
+    pi_uint32 NumSyncPointsInWaitList,
+    const pi_ext_sync_point *SyncPointWaitList, pi_ext_sync_point *SyncPoint) {
+  return pi2ur::piextCommandBufferMemBufferFill(
+      CommandBuffer, Buffer, Pattern, PatternSize, Offset, Size,
+      NumSyncPointsInWaitList, SyncPointWaitList, SyncPoint);
+}
+
+pi_result piextCommandBufferFillUSM(pi_ext_command_buffer CommandBuffer,
+                                    void *Ptr, const void *Pattern,
+                                    size_t PatternSize, size_t Size,
+                                    pi_uint32 NumSyncPointsInWaitList,
+                                    const pi_ext_sync_point *SyncPointWaitList,
+                                    pi_ext_sync_point *SyncPoint) {
+  return pi2ur::piextCommandBufferFillUSM(
+      CommandBuffer, Ptr, Pattern, PatternSize, Size, NumSyncPointsInWaitList,
+      SyncPointWaitList, SyncPoint);
+}
+
 pi_result piextEnqueueCommandBuffer(pi_ext_command_buffer CommandBuffer,
                                     pi_queue Queue,
                                     pi_uint32 NumEventsInWaitList,

sycl/plugins/opencl/pi_opencl.cpp

@@ -1081,6 +1081,27 @@ pi_result piextCommandBufferMemBufferWriteRect(
       NumSyncPointsInWaitList, SyncPointWaitList, SyncPoint);
 }
 
+pi_result piextCommandBufferMemBufferFill(
+    pi_ext_command_buffer CommandBuffer, pi_mem Buffer, const void *Pattern,
+    size_t PatternSize, size_t Offset, size_t Size,
+    pi_uint32 NumSyncPointsInWaitList,
+    const pi_ext_sync_point *SyncPointWaitList, pi_ext_sync_point *SyncPoint) {
+  return pi2ur::piextCommandBufferMemBufferFill(
+      CommandBuffer, Buffer, Pattern, PatternSize, Offset, Size,
+      NumSyncPointsInWaitList, SyncPointWaitList, SyncPoint);
+}
+
+pi_result piextCommandBufferFillUSM(pi_ext_command_buffer CommandBuffer,
+                                    void *Ptr, const void *Pattern,
+                                    size_t PatternSize, size_t Size,
+                                    pi_uint32 NumSyncPointsInWaitList,
+                                    const pi_ext_sync_point *SyncPointWaitList,
+                                    pi_ext_sync_point *SyncPoint) {
+  return pi2ur::piextCommandBufferFillUSM(
+      CommandBuffer, Ptr, Pattern, PatternSize, Size, NumSyncPointsInWaitList,
+      SyncPointWaitList, SyncPoint);
+}
+
 pi_result piextEnqueueCommandBuffer(pi_ext_command_buffer CommandBuffer,
                                     pi_queue Queue,
                                     pi_uint32 NumEventsInWaitList,

sycl/plugins/unified_runtime/pi2ur.hpp

@@ -4580,6 +4580,37 @@ inline pi_result piextCommandBufferMemBufferWrite(
   return PI_SUCCESS;
 }
 
+inline pi_result piextCommandBufferMemBufferFill(
+    pi_ext_command_buffer CommandBuffer, pi_mem Buffer, const void *Pattern,
+    size_t PatternSize, size_t Offset, size_t Size,
+    pi_uint32 NumSyncPointsInWaitList,
+    const pi_ext_sync_point *SyncPointWaitList, pi_ext_sync_point *SyncPoint) {
+  PI_ASSERT(Buffer, PI_ERROR_INVALID_MEM_OBJECT);
+
+  ur_exp_command_buffer_handle_t UrCommandBuffer =
+      reinterpret_cast<ur_exp_command_buffer_handle_t>(CommandBuffer);
+  ur_mem_handle_t UrBuffer = reinterpret_cast<ur_mem_handle_t>(Buffer);
+
+  HANDLE_ERRORS(urCommandBufferAppendMemBufferFillExp(
+      UrCommandBuffer, UrBuffer, Pattern, PatternSize, Offset, Size,
+      NumSyncPointsInWaitList, SyncPointWaitList, SyncPoint));
+  return PI_SUCCESS;
+}
+
+inline pi_result piextCommandBufferFillUSM(
+    pi_ext_command_buffer CommandBuffer, void *Ptr, const void *Pattern,
+    size_t PatternSize, size_t Size, pi_uint32 NumSyncPointsInWaitList,
+    const pi_ext_sync_point *SyncPointWaitList, pi_ext_sync_point *SyncPoint) {
+
+  ur_exp_command_buffer_handle_t UrCommandBuffer =
+      reinterpret_cast<ur_exp_command_buffer_handle_t>(CommandBuffer);
+
+  HANDLE_ERRORS(urCommandBufferAppendUSMFillExp(
+      UrCommandBuffer, Ptr, Pattern, PatternSize, Size, NumSyncPointsInWaitList,
+      SyncPointWaitList, SyncPoint));
+  return PI_SUCCESS;
+}
+
 inline pi_result piextEnqueueCommandBuffer(pi_ext_command_buffer CommandBuffer,
                                            pi_queue Queue,
                                            pi_uint32 NumEventsInWaitList,

sycl/plugins/unified_runtime/pi_unified_runtime.cpp

@@ -1102,6 +1102,27 @@ pi_result piextCommandBufferMemBufferWriteRect(
       NumSyncPointsInWaitList, SyncPointWaitList, SyncPoint);
 }
 
+pi_result piextCommandBufferMemBufferFill(
+    pi_ext_command_buffer CommandBuffer, pi_mem Buffer, const void *Pattern,
+    size_t PatternSize, size_t Offset, size_t Size,
+    pi_uint32 NumSyncPointsInWaitList,
+    const pi_ext_sync_point *SyncPointWaitList, pi_ext_sync_point *SyncPoint) {
+  return pi2ur::piextCommandBufferMemBufferFill(
+      CommandBuffer, Buffer, Pattern, PatternSize, Offset, Size,
+      NumSyncPointsInWaitList, SyncPointWaitList, SyncPoint);
+}
+
+pi_result piextCommandBufferFillUSM(pi_ext_command_buffer CommandBuffer,
+                                    void *Ptr, const void *Pattern,
+                                    size_t PatternSize, size_t Size,
+                                    pi_uint32 NumSyncPointsInWaitList,
+                                    const pi_ext_sync_point *SyncPointWaitList,
+                                    pi_ext_sync_point *SyncPoint) {
+  return pi2ur::piextCommandBufferFillUSM(
+      CommandBuffer, Ptr, Pattern, PatternSize, Size, NumSyncPointsInWaitList,
+      SyncPointWaitList, SyncPoint);
+}
+
 pi_result piextEnqueueCommandBuffer(pi_ext_command_buffer CommandBuffer,
                                     pi_queue Queue,
                                     pi_uint32 NumEventsInWaitList,

sycl/source/detail/memory_manager.cpp

@@ -1666,6 +1666,50 @@ void MemoryManager::ext_oneapi_copy_usm_cmd_buffer(
   }
 }
 
+void MemoryManager::ext_oneapi_fill_usm_cmd_buffer(
+    sycl::detail::ContextImplPtr Context,
+    sycl::detail::pi::PiExtCommandBuffer CommandBuffer, void *DstMem,
+    size_t Len, int Pattern, std::vector<sycl::detail::pi::PiExtSyncPoint> Deps,
+    sycl::detail::pi::PiExtSyncPoint *OutSyncPoint) {
+
+  if (!DstMem)
+    throw runtime_error("NULL pointer argument in memory fill operation.",
+                        PI_ERROR_INVALID_VALUE);
+
+  const PluginPtr &Plugin = Context->getPlugin();
+  // Pattern is interpreted as an unsigned char so pattern size is always 1.
+  size_t PatternSize = 1;
+  Plugin->call<PiApiKind::piextCommandBufferFillUSM>(
+      CommandBuffer, DstMem, &Pattern, PatternSize, Len, Deps.size(),
+      Deps.data(), OutSyncPoint);
+}
+
+void MemoryManager::ext_oneapi_fill_cmd_buffer(
+    sycl::detail::ContextImplPtr Context,
+    sycl::detail::pi::PiExtCommandBuffer CommandBuffer, SYCLMemObjI *SYCLMemObj,
+    void *Mem, size_t PatternSize, const char *Pattern, unsigned int Dim,
+    sycl::range<3> Size, sycl::range<3> AccessRange, sycl::id<3> AccessOffset,
+    unsigned int ElementSize,
+    std::vector<sycl::detail::pi::PiExtSyncPoint> Deps,
+    sycl::detail::pi::PiExtSyncPoint *OutSyncPoint) {
+  assert(SYCLMemObj && "The SYCLMemObj is nullptr");
+
+  const PluginPtr &Plugin = Context->getPlugin();
+  if (SYCLMemObj->getType() != detail::SYCLMemObjI::MemObjType::Buffer) {
+    throw sycl::exception(sycl::make_error_code(sycl::errc::invalid),
+                          "Images are not supported in Graphs");
+  }
+  if (Dim <= 1) {
+    Plugin->call<PiApiKind::piextCommandBufferMemBufferFill>(
+        CommandBuffer, pi::cast<sycl::detail::pi::PiMem>(Mem), Pattern,
+        PatternSize, AccessOffset[0] * ElementSize,
+        AccessRange[0] * ElementSize, Deps.size(), Deps.data(), OutSyncPoint);
+    return;
+  }
+  throw runtime_error("Not supported configuration of fill requested",
+                      PI_ERROR_INVALID_OPERATION);
+}
+
 void MemoryManager::copy_image_bindless(
     void *Src, QueueImplPtr Queue, void *Dst,
     const sycl::detail::pi::PiMemImageDesc &Desc,

sycl/source/detail/memory_manager.hpp

@@ -316,6 +316,24 @@ class __SYCL_EXPORT MemoryManager {
       void *DstMem, std::vector<sycl::detail::pi::PiExtSyncPoint> Deps,
       sycl::detail::pi::PiExtSyncPoint *OutSyncPoint);
 
+  static void ext_oneapi_fill_usm_cmd_buffer(
+      sycl::detail::ContextImplPtr Context,
+      sycl::detail::pi::PiExtCommandBuffer CommandBuffer, void *DstMem,
+      size_t Len, int Pattern,
+      std::vector<sycl::detail::pi::PiExtSyncPoint> Deps,
+      sycl::detail::pi::PiExtSyncPoint *OutSyncPoint);
+
+  static void
+  ext_oneapi_fill_cmd_buffer(sycl::detail::ContextImplPtr Context,
+                             sycl::detail::pi::PiExtCommandBuffer CommandBuffer,
+                             SYCLMemObjI *SYCLMemObj, void *Mem,
+                             size_t PatternSize, const char *Pattern,
+                             unsigned int Dim, sycl::range<3> Size,
+                             sycl::range<3> AccessRange,
+                             sycl::id<3> AccessOffset, unsigned int ElementSize,
+                             std::vector<sycl::detail::pi::PiExtSyncPoint> Deps,
+                             sycl::detail::pi::PiExtSyncPoint *OutSyncPoint);
+
   static void
   copy_image_bindless(void *Src, QueueImplPtr Queue, void *Dst,
                       const sycl::detail::pi::PiMemImageDesc &Desc,

sycl/source/detail/scheduler/commands.cpp

@@ -2764,6 +2764,28 @@ pi_int32 ExecCGCommand::enqueueImpCommandBuffer() {
     MEvent->setSyncPoint(OutSyncPoint);
     return PI_SUCCESS;
   }
+  case CG::CGTYPE::Fill: {
+    CGFill *Fill = (CGFill *)MCommandGroup.get();
+    Requirement *Req = (Requirement *)(Fill->getReqToFill());
+    AllocaCommandBase *AllocaCmd = getAllocaForReq(Req);
+
+    MemoryManager::ext_oneapi_fill_cmd_buffer(
+        MQueue->getContextImplPtr(), MCommandBuffer, AllocaCmd->getSYCLMemObj(),
+        AllocaCmd->getMemAllocation(), Fill->MPattern.size(),
+        Fill->MPattern.data(), Req->MDims, Req->MMemoryRange, Req->MAccessRange,
+        Req->MOffset, Req->MElemSize, std::move(MSyncPointDeps), &OutSyncPoint);
+    MEvent->setSyncPoint(OutSyncPoint);
+    return PI_SUCCESS;
+  }
+  case CG::CGTYPE::FillUSM: {
+    CGFillUSM *Fill = (CGFillUSM *)MCommandGroup.get();
+    MemoryManager::ext_oneapi_fill_usm_cmd_buffer(
+        MQueue->getContextImplPtr(), MCommandBuffer, Fill->getDst(),
+        Fill->getLength(), Fill->getFill(), std::move(MSyncPointDeps),
+        &OutSyncPoint);
+    MEvent->setSyncPoint(OutSyncPoint);
+    return PI_SUCCESS;
+  }
   default:
     throw runtime_error("CG type not implemented for command buffers.",
                         PI_ERROR_INVALID_OPERATION);