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| author | Mitja Felicijan <mitja.felicijan@gmail.com> | 2026-02-12 20:57:17 +0100 |
|---|---|---|
| committer | Mitja Felicijan <mitja.felicijan@gmail.com> | 2026-02-12 20:57:17 +0100 |
| commit | b333b06772c89d96aacb5490d6a219fba7c09cc6 (patch) | |
| tree | 211df60083a5946baa2ed61d33d8121b7e251b06 /llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/multi_add.comp | |
| download | llmnpc-b333b06772c89d96aacb5490d6a219fba7c09cc6.tar.gz | |
Engage!
Diffstat (limited to 'llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/multi_add.comp')
| -rw-r--r-- | llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/multi_add.comp | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/multi_add.comp b/llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/multi_add.comp new file mode 100644 index 0000000..10cf520 --- /dev/null +++ b/llama.cpp/ggml/src/ggml-vulkan/vulkan-shaders/multi_add.comp @@ -0,0 +1,195 @@ +#version 450 + +#extension GL_EXT_shader_16bit_storage : require +#extension GL_EXT_nonuniform_qualifier : enable +#extension GL_EXT_control_flow_attributes : require +#if ADD_RMS +#extension GL_KHR_shader_subgroup_arithmetic : enable +#extension GL_KHR_shader_subgroup_basic : enable +#endif + +#include "rte.glsl" +#include "types.glsl" +#include "utils.glsl" + +layout (push_constant) uniform parameter2 +{ + // shape for dst + uint ne20; uint ne21; uint ne22; uint ne23; + + // strides for srcs+dst + uint nb[12][4]; + + uint rms_partials; +} p; + +// No readonly/writeonly decorations. Workaround for MoltenVK Bug, see https://github.com/ggml-org/llama.cpp/issues/15498 +layout (binding = 0) buffer A0 {A_TYPE data_a[];} a0; +layout (binding = 1) buffer A1 {A_TYPE data_a[];} a1; +layout (binding = 2) buffer A2 {A_TYPE data_a[];} a2; +layout (binding = 3) buffer A3 {A_TYPE data_a[];} a3; +layout (binding = 4) buffer A4 {A_TYPE data_a[];} a4; +layout (binding = 5) buffer A5 {A_TYPE data_a[];} a5; +layout (binding = 6) buffer A6 {A_TYPE data_a[];} a6; +layout (binding = 7) buffer A7 {A_TYPE data_a[];} a7; +layout (binding = 8) buffer A8 {A_TYPE data_a[];} a8; +layout (binding = 9) buffer A9 {A_TYPE data_a[];} a9; +layout (binding = 10) buffer A10 {A_TYPE data_a[];} a10; +layout (binding = 11) buffer A11 {A_TYPE data_a[];} a11; +layout (binding = 0) buffer D0 {D_TYPE data_d[];} d0; +layout (binding = 1) buffer D1 {D_TYPE data_d[];} d1; +layout (binding = 2) buffer D2 {D_TYPE data_d[];} d2; +layout (binding = 3) buffer D3 {D_TYPE data_d[];} d3; +layout (binding = 4) buffer D4 {D_TYPE data_d[];} d4; +layout (binding = 5) buffer D5 {D_TYPE data_d[];} d5; +layout (binding = 6) buffer D6 {D_TYPE data_d[];} d6; +layout (binding = 7) buffer D7 {D_TYPE data_d[];} d7; +layout (binding = 8) buffer D8 {D_TYPE data_d[];} d8; +layout (binding = 9) buffer D9 {D_TYPE data_d[];} d9; +layout (binding = 10) buffer D10 {D_TYPE data_d[];} d10; +layout (binding = 11) buffer D11 {D_TYPE data_d[];} d11; +layout (binding = 0, std430) buffer PartialBuf0 {float partial_sums[];} partials0; +layout (binding = 1, std430) buffer PartialBuf1 {float partial_sums[];} partials1; +layout (binding = 2, std430) buffer PartialBuf2 {float partial_sums[];} partials2; +layout (binding = 3, std430) buffer PartialBuf3 {float partial_sums[];} partials3; +layout (binding = 4, std430) buffer PartialBuf4 {float partial_sums[];} partials4; +layout (binding = 5, std430) buffer PartialBuf5 {float partial_sums[];} partials5; +layout (binding = 6, std430) buffer PartialBuf6 {float partial_sums[];} partials6; +layout (binding = 7, std430) buffer PartialBuf7 {float partial_sums[];} partials7; +layout (binding = 8, std430) buffer PartialBuf8 {float partial_sums[];} partials8; +layout (binding = 9, std430) buffer PartialBuf9 {float partial_sums[];} partials9; +layout (binding = 10, std430) buffer PartialBuf10 {float partial_sums[];} partials10; +layout (binding = 11, std430) buffer PartialBuf11 {float partial_sums[];} partials11; + +layout(constant_id = 0) const uint num_srcs = 2; + +FLOAT_TYPE load_a(uint b, uint i) { + switch (b) { + case 0: return FLOAT_TYPE(a0.data_a[i]); + case 1: return FLOAT_TYPE(a1.data_a[i]); + case 2: return FLOAT_TYPE(a2.data_a[i]); + case 3: return FLOAT_TYPE(a3.data_a[i]); + case 4: return FLOAT_TYPE(a4.data_a[i]); + case 5: return FLOAT_TYPE(a5.data_a[i]); + case 6: return FLOAT_TYPE(a6.data_a[i]); + case 7: return FLOAT_TYPE(a7.data_a[i]); + case 8: return FLOAT_TYPE(a8.data_a[i]); + case 9: return FLOAT_TYPE(a9.data_a[i]); + case 10: return FLOAT_TYPE(a10.data_a[i]); + case 11: return FLOAT_TYPE(a11.data_a[i]); + default: return FLOAT_TYPE(0); + } +} + +void store_d(uint b, uint i, FLOAT_TYPE v) { + switch (b) { + case 0: d0.data_d[i] = D_TYPE(v); break; + case 1: d1.data_d[i] = D_TYPE(v); break; + case 2: d2.data_d[i] = D_TYPE(v); break; + case 3: d3.data_d[i] = D_TYPE(v); break; + case 4: d4.data_d[i] = D_TYPE(v); break; + case 5: d5.data_d[i] = D_TYPE(v); break; + case 6: d6.data_d[i] = D_TYPE(v); break; + case 7: d7.data_d[i] = D_TYPE(v); break; + case 8: d8.data_d[i] = D_TYPE(v); break; + case 9: d9.data_d[i] = D_TYPE(v); break; + case 10: d10.data_d[i] = D_TYPE(v); break; + case 11: d11.data_d[i] = D_TYPE(v); break; + default: break; + } +} + +void store_partial(uint b, uint i, float v) { + switch (b) { + case 0: partials0.partial_sums[i] = v; break; + case 1: partials1.partial_sums[i] = v; break; + case 2: partials2.partial_sums[i] = v; break; + case 3: partials3.partial_sums[i] = v; break; + case 4: partials4.partial_sums[i] = v; break; + case 5: partials5.partial_sums[i] = v; break; + case 6: partials6.partial_sums[i] = v; break; + case 7: partials7.partial_sums[i] = v; break; + case 8: partials8.partial_sums[i] = v; break; + case 9: partials9.partial_sums[i] = v; break; + case 10: partials10.partial_sums[i] = v; break; + case 11: partials11.partial_sums[i] = v; break; + default: break; + } +} + +uint src_idx(uint s, uint i00, uint i01, uint i02, uint i03) { + return i03*p.nb[s][3] + i02*p.nb[s][2] + i01*p.nb[s][1] + i00*p.nb[s][0]; +} + +uint dst_idx(uint i00, uint i01, uint i02, uint i03) { + uint nb20 = p.nb[num_srcs][0]; + uint nb21 = p.nb[num_srcs][1]; + uint nb22 = p.nb[num_srcs][2]; + uint nb23 = p.nb[num_srcs][3]; + return i03*nb23 + i02*nb22 + i01*nb21 + i00*nb20; +} + +uint get_idx() { + return gl_GlobalInvocationID.z * 262144 + gl_GlobalInvocationID.y * 512 + gl_GlobalInvocationID.x; +} + +const uint num_threads = 256; + +layout(local_size_x = num_threads, local_size_y = 1, local_size_z = 1) in; + +#if ADD_RMS +// XXX TODO this could be sized based on number of subgroups, but that't not considered a constant +shared FLOAT_TYPE sumsh[num_threads]; +#endif + +void main() { + uint idx = get_idx(); + uint orig_idx = idx; + + uint ne = p.ne20 * p.ne21 * p.ne22 * p.ne23; + + // num_threads * num_iter must equal 512, to match the wg_denoms and get_idx calculation + const uint num_iter = 2; + + FLOAT_TYPE sum_sq = 0; + + [[unroll]] for (uint i = 0; i < num_iter; ++i) { + if (idx >= ne) { + continue; + } + uint i00, i01, i02, i03; + get_indices(idx, i00, i01, i02, i03, p.ne20, p.ne21, p.ne22, p.ne23); + + FLOAT_TYPE sum = FLOAT_TYPE(0); + [[unroll]] for (uint s = 0; s < num_srcs; ++s) { + sum += load_a(s, src_idx(s, i00, i01, i02, i03)); + } + sum_sq += sum*sum; + store_d(num_srcs, dst_idx(i00, i01, i02, i03), sum); + + idx += num_threads; + } + +#if ADD_RMS + if (p.rms_partials != 0) { + // reduce the sum within each subgroup, then across subgroups + const uint NumSubgroups = num_threads / gl_SubgroupSize; + sum_sq = subgroupAdd(sum_sq); + if (gl_SubgroupInvocationID == 0) { + sumsh[gl_SubgroupID] = sum_sq; + } + barrier(); + [[unroll]] for (uint s = NumSubgroups / 2; s > 0; s >>= 1) { + if (gl_SubgroupID < s && gl_SubgroupInvocationID == 0) { + sum_sq += sumsh[gl_SubgroupID + s]; + sumsh[gl_SubgroupID] = sum_sq; + } + barrier(); + } + + if (gl_SubgroupID == 0 && gl_SubgroupInvocationID == 0) { + store_partial(num_srcs + 1, orig_idx / (num_iter * num_threads), sum_sq); + } + } +#endif +} |
