log common_speculative_are_compatible in speculative example

Author: g2mt

examples/speculative-simple/speculative-simple.cpp

@@ -45,6 +45,10 @@ int main(int argc, char ** argv) {
     model_tgt = llama_init_tgt.model.get();
     ctx_tgt   = llama_init_tgt.context.get();
 
+    if (!common_speculative_are_compatible(ctx_tgt, ctx_dft)) {
+        LOG_INF("the draft model '%s' is not compatible with the target model '%s'. tokens will be translated between the draft and target models.\n", params.speculative.model.path.c_str(), params.model.path.c_str());
+    }
+
     const llama_vocab * vocab = llama_model_get_vocab(model_tgt);
 
     // load the draft model