From: Georgi Gerganov <redacted>
Date: Thu, 14 Aug 2025 19:10:51 +0000 (+0300)
Subject: eval-callback : stop on first NaN (#15320)
X-Git-Tag: upstream/0.0.6199~30
X-Git-Url: https://git.djapps.eu/?a=commitdiff_plain;h=df36bce667bf14f8e538645547754386f9516326;p=pkg%2Fggml%2Fsources%2Fllama.cpp

eval-callback : stop on first NaN (#15320)

* eval-callback : stop on first NaN

* cont : log error
---

diff --git a/examples/eval-callback/eval-callback.cpp b/examples/eval-callback/eval-callback.cpp
index 4afd80eb..61eefc72 100644
--- a/examples/eval-callback/eval-callback.cpp
+++ b/examples/eval-callback/eval-callback.cpp
@@ -7,6 +7,7 @@
 #include <cstdio>
 #include <string>
 #include <vector>
+#include <numeric>
 
 /**
  * This the arbitrary data which will be passed to each callback.
@@ -77,6 +78,12 @@ static void ggml_print_tensor(uint8_t * data, ggml_type type, const int64_t * ne
         LOG("                                     ]\n");
         LOG("                                     sum = %f\n", sum);
     }
+
+    // TODO: make this abort configurable/optional?
+    if (std::isnan(sum)) {
+        LOG_ERR("encountered NaN - aborting\n");
+        exit(0);
+    }
 }
 
 /**