ggml : add unary and binary map operations (#874)

* GGML map ops proof of concept.

* Various cleanups.

Add handling for task setting.

Add handling for ggml_compute_backward.

Rename functions to ggml_map_unary_f32 and ggml_map_binary_f32

Fix compiler warnings related to casting function pointers and `void *`

Reorder functions and definitions based on the GGML op number.

Use typedefs for map op function pointer types.

* Fix position of map ops cases in ggml_compute_forward

1 files changed, 18 insertions, 0 deletions

diff --git a/ggml.h b/ggml.h
index c06c09e..bdff0b4 100644
--- a/ggml.h
+++ b/ggml.h
@@ -253,6 +253,9 @@ enum ggml_op {
     GGML_OP_FLASH_ATTN,
     GGML_OP_FLASH_FF,
 
+    GGML_OP_MAP_UNARY,
+    GGML_OP_MAP_BINARY,
+
     GGML_OP_COUNT,
 };
 
@@ -652,6 +655,21 @@ struct ggml_tensor * ggml_flash_ff(
         struct ggml_tensor  * c0,
         struct ggml_tensor  * c1);
 
+// Mapping operations
+typedef void (*ggml_unary_op_f32_t)(const int, float *, const float *);
+typedef void (*ggml_binary_op_f32_t)(const int, float *, const float *, const float *);
+
+struct ggml_tensor * ggml_map_unary_f32(
+        struct ggml_context        * ctx,
+        struct ggml_tensor         * a,
+        const  ggml_unary_op_f32_t fun);
+
+struct ggml_tensor * ggml_map_binary_f32(
+        struct ggml_context         * ctx,
+        struct ggml_tensor          * a,
+        struct ggml_tensor          * b,
+        const  ggml_binary_op_f32_t fun);
+
 //
 // automatic differentiation
 //