Fix failed assertions while running Falcon Mamba

Author: jploski

ggml/src/ggml-cuda/norm.cu

@@ -153,9 +153,9 @@ static void group_norm_f32_cuda(const float * x, float * dst, const int num_grou
 }
 
 static void rms_norm_f32_cuda(const float * x, float * dst, const int ncols, const int nrows, const float eps, cudaStream_t stream) {
-    GGML_ASSERT(ncols % WARP_SIZE == 0);
+    GGML_ASSERT(ncols % WARP_SIZE == 0 || ncols < WARP_SIZE);
     if (ncols < 1024) {
-        const dim3 block_dims(WARP_SIZE, 1, 1);
+        const dim3 block_dims(min(ncols, WARP_SIZE), 1, 1);
         rms_norm_f32<WARP_SIZE><<<nrows, block_dims, 0, stream>>>(x, dst, ncols, eps);
     } else {
         const dim3 block_dims(1024, 1, 1);

src/llama.cpp

@@ -9119,9 +9119,9 @@ static struct ggml_tensor * llm_build_mamba(
 
         // Some Mamba variants (e.g. FalconMamba) apply RMS norm in B, C & Dt layers
         if (ssm_dt_b_c_rms) {
-            dt = ggml_rms_norm(ctx, dt, norm_rms_eps);
-            B = ggml_rms_norm(ctx, B, norm_rms_eps);
-            C = ggml_rms_norm(ctx, C, norm_rms_eps);
+            dt = ggml_rms_norm(ctx, ggml_cont(ctx, dt), norm_rms_eps);
+            B = ggml_rms_norm(ctx, ggml_cont(ctx, B), norm_rms_eps);
+            C = ggml_rms_norm(ctx, ggml_cont(ctx, C), norm_rms_eps);
         }
 
         // {dt_rank, d_inner} @ {dt_rank, n_seq_tokens, n_seqs} => {d_inner, n_seq_tokens, n_seqs}