fix workgroup size hardcode

ggerganov · Jun 18, 2024 · 6a4fd2b · 6a4fd2b
1 parent a7614fa
commit 6a4fd2b
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Showing 2 changed files with 9 additions and 11 deletions.
diff --git a/ggml-sycl.cpp b/ggml-sycl.cpp
@@ -47,6 +47,8 @@ void ggml_sycl_get_device_description(int device, char * description, size_t d
 bool ggml_backend_is_sycl(ggml_backend_t backend);
 int ggml_backend_sycl_get_device(ggml_backend_t backend);
 static bool ggml_backend_buffer_is_sycl_split(ggml_backend_buffer_t buffer);
+static inline int get_sycl_env(const char *env_name, int default_val);
+static inline int get_work_group_size(const sycl::device& device);
 
 void dev2dev_memcpy(sycl::queue &q_dst, sycl::queue &q_src, void *ptr_dst,
  const void *ptr_src, size_t size) {
@@ -1768,8 +1770,7 @@ static void norm_f32_sycl(const float *x, float *dst, const int ncols,
  });
  });
  } else {
- // FIXME: 1024 from cuda
- const int work_group_size = GROUP_SIZE;
+ const int work_group_size = get_work_group_size(stream->get_device());
  const sycl::range<3> block_dims(1, 1, work_group_size);
  /*
  DPCT1049:17: The work-group size passed to the SYCL kernel may exceed
@@ -1815,7 +1816,7 @@ static void group_norm_f32_sycl(const float *x, float *dst,
  });
  });
  } else {
- const int work_group_size = GROUP_SIZE;
+ const int work_group_size = get_work_group_size(stream->get_device());
  const sycl::range<3> block_dims(1, 1, work_group_size);
  /*
  DPCT1049:18: The work-group size passed to the SYCL kernel may exceed
@@ -1904,7 +1905,7 @@ static void rms_norm_f32_sycl(const float *x, float *dst, const int ncols,
  });
  });
  } else {
- const int work_group_size = GROUP_SIZE;
+ const int work_group_size = get_work_group_size(stream->get_device());
  const sycl::range<3> block_dims(1, 1, work_group_size);
  /*
  DPCT1049:19: The work-group size passed to the SYCL kernel may exceed
@@ -2444,7 +2445,7 @@ static void soft_max_f32_sycl(const float * x, const float * mask,
  const int nrows_y, const float scale, const float max_bias,
  queue_ptr stream) {
  int nth = WARP_SIZE;
- int max_block_size = GROUP_SIZE;
+ int max_block_size = get_work_group_size(stream->get_device());
  while (nth < ncols_x && nth < max_block_size) nth *= 2;
  if (nth>max_block_size) nth = max_block_size;
 
@@ -2596,7 +2597,7 @@ void ggml_backend_sycl_print_sycl_devices() {
  }
 }
 
-int get_sycl_env(const char *env_name, int default_val) {
+static inline int get_sycl_env(const char *env_name, int default_val) {
  char *user_device_string = getenv(env_name);
  int user_number = default_val;
 
@@ -2610,10 +2611,9 @@ int get_sycl_env(const char *env_name, int default_val) {
  return user_number;
 }
 
-int get_work_group_size(int user_device_id) {
+static inline int get_work_group_size(const sycl::device& device) {
  dpct::device_info prop;
- dpct::get_device_info(prop,
- dpct::dev_mgr::instance().get_device(user_device_id));
+ dpct::get_device_info(prop, device);
  return prop.get_max_work_group_size();
 }
 

diff --git a/ggml-sycl/presets.hpp b/ggml-sycl/presets.hpp
@@ -18,8 +18,6 @@
 #define GGML_SYCL_MAX_DEVICES 48
 #define GGML_SYCL_NAME "SYCL"
 
-// FIXME: 1024 from cuda
-#define GROUP_SIZE 1024
 #define WARP_SIZE 32
 #define MATRIX_ROW_PADDING 512 // last row of quant. matrices is a multiple of this to avoid out-of-bounds memory accesses