Fix backend_init for DLL-based builds, add self and bartowski to CODEOWNERS for tiled

CODEOWNERS

@@ -57,7 +57,7 @@
 /ggml/src/ggml-cann/                    @ggml-org/ggml-cann
 /ggml/src/ggml-common.h                 @ggerganov
 /ggml/src/ggml-cpu/                     @ggerganov
-/ggml/src/ggml-cpu/iqp.*                @bartowski1182
+/ggml/src/ggml-cpu/tiled/               @jbooth @bartowski1182
 /ggml/src/ggml-cpu/spacemit/            @alex-spacemit
 /ggml/src/ggml-cuda/                    @ggml-org/ggml-cuda
 /ggml/src/ggml-cuda/vendors/hip.h       @IMbackK

tests/test-tiled-mulmat.cpp

@@ -644,7 +644,8 @@ int main() {
     setenv("GGML_CPU_TILED_MM", "1", 1);
     setenv("GGML_CPU_TILED_MM_FORCE", "1", 1);
 #endif
-
+                                                                                                                                                     
+    ggml_backend_load_all();                                                
     ggml_backend_t backend = ggml_backend_init_by_type(GGML_BACKEND_DEVICE_TYPE_CPU, NULL);
     if (!backend) {
         fprintf(stderr, "failed to initialize the CPU backend\n");