1 files changed, 42 insertions, 0 deletions
diff --git a/llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/opt_step_adamw.comp b/llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/opt_step_adamw.comp
new file mode 100644
index 0000000..1f05f92
--- /dev/null
+++ b/llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/opt_step_adamw.comp
@@ -0,0 +1,42 @@
+#version 450
+
+#include "generic_head.glsl"
+#include "types.glsl"
+
+#extension GL_EXT_control_flow_attributes : enable
+
+layout(local_size_x = 512, local_size_y = 1, local_size_z = 1) in;
+
+layout (binding = 0) buffer X {A_TYPE x[];};
+layout (binding = 1) readonly buffer G {A_TYPE grad[];};
+layout (binding = 2) buffer GM {A_TYPE gradm[];};
+layout (binding = 3) buffer GV {A_TYPE gradv[];};
+layout (binding = 4) readonly buffer P {float params[7];};
+
+void main() {
+    const uint i = gl_GlobalInvocationID.z * 262144 + gl_GlobalInvocationID.y * 512 + gl_GlobalInvocationID.x;
+
+    if (i >= p.KX) {
+        return;
+    }
+
+    const float alpha  = params[0];
+    const float beta1  = params[1];
+    const float beta2  = params[2];
+    const float eps    = params[3];
+    const float wd     = params[4];
+    const float beta1h = params[5];
+    const float beta2h = params[6];
+
+    const float gi = grad[i];
+    const float gmi = gradm[i]*beta1 +    gi*(1.0f - beta1);
+    const float gvi = gradv[i]*beta2 + gi*gi*(1.0f - beta2);
+
+    gradm[i] = gmi;
+    gradv[i] = gvi;
+
+    const float mh =      gmi*beta1h;
+    const float vh = sqrt(gvi*beta2h) + eps;
+
+    x[i] = x[i]*(1.0f - alpha*wd) - alpha*mh/vh;
+}