return acl_tensor;
}
+/**
+ * @brief Fills a tensor with a scalar value.
+ *
+ * This function fills the destination tensor `acl_dst` with the scalar value
+ * `scalar`.
+ *
+ * @param ctx The context for the CANN backend operations.
+ * @param scalar The scalar value used to fill the tensor.
+ * @param acl_dst The destination tensor to be filled with the scalar value.
+ */
+static void aclnn_fill_scalar(ggml_backend_cann_context& ctx, float scalar,
+ aclTensor* acl_dst) {
+ auto acl_scalar = aclCreateScalar(&scalar, aclDataType::ACL_FLOAT);
+ GGML_CANN_CALL_ACLNN_OP(ctx, InplaceFillScalar, acl_dst, acl_scalar);
+ ggml_cann_release_resources(ctx, acl_scalar);
+}
+
+/**
+ * @brief Get or expand a cached float32 tensor filled with a scalar value.
+ *
+ * This function manages cached device memory for float32 tensors. If the current
+ * cache size is insufficient for the requested tensor shape, the old memory will
+ * be released and new memory will be allocated. The allocated buffer is then
+ * initialized either with zeros (when @p value == 0.0f) or with the given scalar
+ * value using CANN operations. Finally, an aclTensor object is created from the
+ * cached memory and returned.
+ *
+ * @param ctx The CANN backend context that manages device memory.
+ * @param buffer A pointer to the cached device buffer (will be allocated
+ * or reallocated if necessary).
+ * @param cache_element The current number of cached elements. This will be
+ * updated when the cache is expanded.
+ * @param ne The tensor shape array (number of elements in each dimension).
+ * @param nb The stride size for each dimension.
+ * @param dims The number of tensor dimensions.
+ * @param value The scalar value used to fill the tensor (supports zero
+ * initialization via memset or arbitrary values via fill_scalar).
+ * @return An aclTensor pointer created from the cached buffer.
+ */
+static aclTensor* get_f32_cache_acl_tensor(
+ ggml_backend_cann_context& ctx,
+ void** buffer,
+ int64_t &cache_element,
+ int64_t* ne,
+ size_t* nb,
+ int64_t dims,
+ float value) {
+ // Calculate total number of elements
+ int64_t n_element = 1;
+ for (int i = 0; i < dims; i++) {
+ n_element *= ne[i];
+ }
+ size_t size = n_element * sizeof(float);
+
+ // Allocate or expand cache if needed
+ if (cache_element < n_element) {
+ if (*buffer != nullptr) {
+ aclrtFree(*buffer);
+ *buffer = nullptr;
+ }
+
+ ACL_CHECK(aclrtMalloc(buffer, size, ACL_MEM_MALLOC_HUGE_FIRST));
+ cache_element = n_element;
+
+ // Initialize cache
+ if (value == 0.0f) {
+ ACL_CHECK(aclrtMemsetAsync(*buffer, size, 0, size, ctx.stream()));
+ } else {
+ int64_t pool_ne[1] = { n_element };
+ size_t pool_nb[1] = { sizeof(float) };
+ aclTensor* acl_value = ggml_cann_create_tensor(
+ *buffer, ACL_FLOAT, sizeof(float), pool_ne, pool_nb, 1);
+ aclnn_fill_scalar(ctx, 1, acl_value);
+ ggml_cann_release_resources(ctx, acl_value);
+ }
+ }
+
+ return ggml_cann_create_tensor(*buffer, ACL_FLOAT, sizeof(float), ne, nb, dims);
+}
+
void ggml_cann_rms_norm(ggml_backend_cann_context& ctx, ggml_tensor* dst) {
ggml_tensor* src = dst->src[0];
float eps;
memcpy(&eps, dst->op_params, sizeof(float));
- size_t one_tensor_n_bytes = src->ne[0] * ggml_element_size(src);
- ggml_cann_pool_alloc one_tensor_allocator(ctx.pool(), one_tensor_n_bytes);
-
- aclTensor* acl_gamma = aclnn_values(
- ctx, one_tensor_allocator.get(), one_tensor_n_bytes, src->ne, 1,
- ggml_cann_type_mapping(src->type), ggml_element_size(src));
-
- size_t zero_tensor_n_bytes =
- src->ne[1] * src->ne[2] * src->ne[3] * ggml_element_size(src);
- ggml_cann_pool_alloc zero_tensor_allocator(ctx.pool(), zero_tensor_n_bytes);
- aclTensor* acl_rstd =
- aclnn_zero(ctx, zero_tensor_allocator.get(), zero_tensor_n_bytes,
- src->ne, GGML_MAX_DIMS, ggml_cann_type_mapping(src->type),
- ggml_element_size(src));
+
+ // build gamma, one...
+ size_t acl_gamma_nb[GGML_MAX_DIMS];
+ acl_gamma_nb[0] = sizeof(float);
+ for (int i = 1; i < GGML_MAX_DIMS; i++) {
+ acl_gamma_nb[i] = acl_gamma_nb[i - 1] * src->ne[i - 1];
+ }
+ aclTensor* acl_gamma = get_f32_cache_acl_tensor(
+ ctx,
+ &ctx.f32_one_cache,
+ ctx.f32_one_cache_element,
+ src->ne,
+ acl_gamma_nb,
+ 1, // dims
+ 1.0f // value
+ );
+
+ // build rstd, zero...
+ size_t acl_rstd_nb[GGML_MAX_DIMS];
+ acl_rstd_nb[0] = sizeof(float);
+ for (int i = 1; i < GGML_MAX_DIMS; i++) {
+ acl_rstd_nb[i] = acl_rstd_nb[i - 1] * src->ne[i - 1];
+ }
+ aclTensor* acl_rstd = get_f32_cache_acl_tensor(
+ ctx,
+ &ctx.f32_zero_cache,
+ ctx.f32_zero_cache_element,
+ src->ne,
+ acl_rstd_nb,
+ GGML_MAX_DIMS,
+ 0.0f // value
+ );
+
GGML_CANN_CALL_ACLNN_OP(ctx, RmsNorm, acl_src, acl_gamma, eps, acl_dst, acl_rstd);
ggml_cann_release_resources(ctx, acl_src, acl_dst, acl_gamma, acl_rstd);
}
const int n_past = ((int32_t*)dst->op_params)[0];
- size_t one_tensor_n_bytes = src->ne[0] * src->ne[1] * src->ne[2] *
- src->ne[3] * ggml_element_size(src);
- ggml_cann_pool_alloc one_tensor_allocator(ctx.pool(), one_tensor_n_bytes);
+ ggml_cann_pool_alloc one_tensor_allocator(ctx.pool(), ggml_nbytes(src));
+ void* buffer = one_tensor_allocator.get();
- aclTensor* mask_tensor =
- aclnn_values(ctx, one_tensor_allocator.get(), one_tensor_n_bytes,
- src->ne, GGML_MAX_DIMS, ggml_cann_type_mapping(src->type),
- ggml_element_size(src), value);
+ aclTensor* mask_tensor = ggml_cann_create_tensor(buffer, ggml_cann_type_mapping(src->type),
+ ggml_type_size(src->type), src->ne, src->nb, GGML_MAX_DIMS);
+
+ aclnn_fill_scalar(ctx, value, mask_tensor);
aclScalar* alpha = nullptr;
float alphaValue = 1.0f;
tmp_permute_tensor, tmp_mul_tensor, acl_dst);
}
-/**
- * @brief Fills a tensor with a scalar value.
- *
- * This function fills the destination tensor `acl_dst` with the scalar value
- * `scalar`.
- *
- * @param ctx The context for the CANN backend operations.
- * @param scalar The scalar value used to fill the tensor.
- * @param acl_dst The destination tensor to be filled with the scalar value.
- */
-static void aclnn_fill_scalar(ggml_backend_cann_context& ctx, float scalar,
- aclTensor* acl_dst) {
- auto acl_scalar = aclCreateScalar(&scalar, aclDataType::ACL_FLOAT);
- GGML_CANN_CALL_ACLNN_OP(ctx, InplaceFillScalar, acl_dst, acl_scalar);
- ggml_cann_release_resources(ctx, acl_scalar);
-}
-
/**
* @brief Raises each element of a tensor to the power of the corresponding
* element in another tensor.
overview / pkg / ggml / sources / ggml / commitdiff