From 64faa095a2401b5e1f1ce76ebf6ce3015a6048d3 Mon Sep 17 00:00:00 2001
From: Omar Sobh <osobh@redclaw.dev>
Date: Wed, 16 Sep 2026 07:23:02 -0500
Subject: [PATCH] rtx-cfd CUDA kernels: no host headers in the NVRTC sources
 (cuda_runtime.h was never found: every legacy GPU test failed at manager
 creation)

---
 crates/specialized/rtx-cfd/src/kernels/cuda/reduction.cu | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/specialized/rtx-cfd/src/kernels/cuda/reduction.cu b/crates/specialized/rtx-cfd/src/kernels/cuda/reduction.cu
index 204077e..a3c20cf 100644
--- a/crates/specialized/rtx-cfd/src/kernels/cuda/reduction.cu
+++ b/crates/specialized/rtx-cfd/src/kernels/cuda/reduction.cu
@@ -9,7 +9,7 @@
  * Using warp shuffle operations for modern GPUs
  */
 
-#include <cuda_runtime.h>
+// (no host headers: NVRTC compiles these as device code with the built-ins only)
 #include <float.h>
 
 // Warp size constant