llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/round.comp

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#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) readonly buffer X {A_TYPE data_a[];};
layout (binding = 1) writeonly buffer D {D_TYPE data_d[];};
void main() {
const uint i = gl_GlobalInvocationID.z * 262144 + gl_GlobalInvocationID.y * 512 + gl_GlobalInvocationID.x;
if (i >= p.KX) {
return;
}
const float x = float(data_a[i]);
float result;
// Round halfway cases away from zero as roundf does.
if (x >= 0.0) {
result = floor(x + 0.5);
} else {
result = ceil(x - 0.5);
}
data_d[i] = D_TYPE(result);
}