mirror of
https://github.com/ggerganov/llama.cpp.git
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74 lines
2.2 KiB
Plaintext
74 lines
2.2 KiB
Plaintext
/**
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* Copyright (c) 2023 Nomic, Inc. All rights reserved.
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*
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* This software is licensed under the terms of the Software for Open Models
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* License (SOM), version 1.0, as detailed in the LICENSE_SOM.txt file. A copy
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* of this license should accompany this software. Except as expressly granted
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* in the SOM license, all rights are reserved by Nomic, Inc.
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*/
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#version 450
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#include "common.comp"
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#extension GL_KHR_shader_subgroup_arithmetic : require
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#extension GL_EXT_debug_printf : enable
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layout(local_size_x = 32) in;
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layout(binding = 0) readonly buffer tensorInA { uint8_t inA[]; };
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layout(binding = 1) readonly buffer tensorInB { float inB[]; };
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layout(binding = 2) writeonly buffer tensorOut { float out_[]; };
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layout(push_constant) uniform parameter {
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uint inAOff;
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uint inBOff;
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uint outOff;
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int ne00;
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int ne01;
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int ne02;
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int ne11;
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int ne12;
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uint nb01;
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uint nb02;
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uint nb11;
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uint nb12;
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uint nb1;
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uint nb2;
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}
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pcs;
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#define ELS_PER_BLOCK 32
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#define M_OFFSET 2
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#define QS_OFFSET 4
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#define BLOCK_SIZE ((ELS_PER_BLOCK / 2) + QS_OFFSET)
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void main() {
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uvec3 gid = gl_GlobalInvocationID;
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uint bc_ab = pcs.ne12 > pcs.ne02 ? gid.z / (pcs.ne12 / pcs.ne02) : gid.z;
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uint bc_ba = pcs.ne02 > pcs.ne12 ? gid.z / (pcs.ne02 / pcs.ne12) : gid.z;
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const uint x = (gid.x*pcs.nb01 + bc_ab*pcs.nb02) + pcs.inAOff; // Based from inA
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const uint y = (gid.y*pcs.nb11 + bc_ba*pcs.nb12) / 4 + pcs.inBOff; // based from inB
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float sum = 0.0f;
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for (uint i = 0; i < pcs.ne00; i+=ELS_PER_BLOCK) {
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for (uint j = 0; j < ELS_PER_BLOCK / 2; j++) {
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const uint block_number = i / ELS_PER_BLOCK;
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const uint block_offset = block_number * BLOCK_SIZE;
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const float d = u8BufToFloat16(inA, x + block_offset);
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const float m = u8BufToFloat16(inA, x + block_offset + M_OFFSET);
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const uint byte_position_in_block = j;
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const int q0 = (inA[x+block_offset+QS_OFFSET+byte_position_in_block] & 0x0F);
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const int q1 = (inA[x+block_offset+QS_OFFSET+byte_position_in_block] >> 4);
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const float dq0 = (d * q0) + m;
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const float dq1 = (d * q1) + m;
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sum += (dq0 * float(inB[y+i+j])) + \
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(dq1 * float(inB[y+i+j+(ELS_PER_BLOCK/2)]));
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}
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}
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out_[gid.z*(pcs.nb2/4) + gid.y*(pcs.nb1/4) + gid.x + pcs.outOff] = sum;
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}
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