imatrix : offload to GPU support (llama/4957)

* backend : add eval callback

ggml-ci

* backend : group nodes in a single compute when user don't need them

* backend : clean-up the implementation

ggml-ci

* simple : do not perform tensor data copy if not needed

* simple : fix

* imatrix : offload to GPU support

* imatrix : fix ggml_mul_mat_id hanlding

ggml-ci

* ci : add imatrix test

ggml-ci

* ci : rearrange output

ggml-ci

diff --git a/ggml.c b/ggml.c
index d7e01b81f01792b13e251b44e2fe67042f51734d..35fd29a9ec2dc899525d8d0f1d20d5480b17f3f0 100644 (file)
--- a/ggml.c
+++ b/ggml.c
@@ -394,12 +394,6 @@ static const size_t CACHE_LINE_SIZE_F32 = CACHE_LINE_SIZE/sizeof(float);
 static void ggml_vec_dot_f32(const int n, float * restrict s, const float * restrict x, const float * restrict y);
 static void ggml_vec_dot_f16(const int n, float * restrict s, ggml_fp16_t * restrict x, ggml_fp16_t * restrict y);
 
-ggml_collect_imatrix_t g_imatrix_collect = NULL;
-
-void ggml_set_imatrix_collection(ggml_collect_imatrix_t imatrix_collect) {
-    g_imatrix_collect = imatrix_collect;
-}
-
 static const ggml_type_traits_t type_traits[GGML_TYPE_COUNT] = {
     [GGML_TYPE_I8] = {
         .type_name                = "i8",
@@ -9790,10 +9784,6 @@ static void ggml_compute_forward_mul_mat(
     const int ith = params->ith;
     const int nth = params->nth;
 
-    if (ith == 1 && g_imatrix_collect) {
-        g_imatrix_collect(src0, src1);
-    }
-
     const enum ggml_type type = src0->type;
 
     const bool src1_cont = ggml_is_contiguous(src1);
@@ -10097,10 +10087,6 @@ static void ggml_compute_forward_mul_mat_id(
 
         const struct ggml_tensor * src0_cur = dst->src[cur_a + 2];
 
-        if (ith == 1 && g_imatrix_collect) {
-            g_imatrix_collect(src0_cur, src1);
-        }
-
         const void * wdata    = (src1->type == vec_dot_type) ? src1->data : params->wdata;
         const size_t row_size = ggml_row_size(vec_dot_type, ne10);
 

diff --git a/ggml.h b/ggml.h
index 837c52e68c90cefc813e66f1a9817433ca3ce990..27daf6fd1e12b6ccda8513a62e1e6a420e18930f 100644 (file)
--- a/ggml.h
+++ b/ggml.h
@@ -2085,12 +2085,6 @@ extern "C" {
     GGML_API void ggml_init_iq2_quantization(enum ggml_type type);
     GGML_API void ggml_deinit_iq2_quantization(enum ggml_type type);
 
-    //
-    // Importance matrix
-    //
-    typedef void(*ggml_collect_imatrix_t)(const struct ggml_tensor * src0, const struct ggml_tensor * src1);
-    GGML_API void ggml_set_imatrix_collection(ggml_collect_imatrix_t imatrix_collect);
-
     //
     // gguf
     //