8cf19d60dc
* check whether platform is 390x if yes->do not import immintrin.h * support s390x big endian * support --bigendian option for s390x 1. verified with baichuan7b-chat with float 16 on s390x 2. verified with baichuan7b-chat 3. verified with chinese-alpaca-2-13b-f16 * update format based on editor-config checker result * Update convert-baichuan-hf-to-gguf.py * 1. check in ggml.c if endianess is not match 2. update GGUF version 3. change get_pack_prefix to property 4. update information log * always use "GGUF" as beginng of GGUF file * Compare "GGUF" with file header char by char 1. Set GGUF_MAGIC to "GGUF" string instead of int value 2. Compare "GGUF" char by char to ensure its byte order 3. Move bytes swap code from convert.py to gguf.py write_tensor_data --------- Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
// These tests may take a long time!
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// They are to prove that conversion from double to float of various functions in ggml.c doesn't affect the result.
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// This is done by checking all finite (non-NaN, non-infinite) floats.
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#undef NDEBUG
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#include <cassert>
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#if !defined(__riscv) && !defined(__s390__)
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#include <immintrin.h>
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#endif
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#include <cmath>
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#include <cstdint>
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#include <cstring>
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wdouble-promotion"
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// ggml.c::quantize_row_q4_0_reference
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inline static uint8_t round_orig(float v0) { return ((int8_t) (round(v0))) + 8; }
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// ggml.c::ggml_silu_f32
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inline static float silu_orig(float x) {
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return x/(1.0 + exp(-x));
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}
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#pragma GCC diagnostic pop
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// ggml.c::quantize_row_q4_0_reference
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inline static uint8_t round_float(float v0) { return (int8_t)roundf(v0) + 8; }
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// ggml.c::ggml_silu_f32
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inline static float silu_float(float x) {
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return x/(1.0f + expf(-x));
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}
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int main(void) {
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uint32_t x = UINT32_MAX;
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do {
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float f;
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memcpy(&f, &x, sizeof(x));
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assert(!std::isfinite(f) || (round_orig(f) == round_float(f)));
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} while (x--);
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#ifdef __F16C__
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// GELU and SILU implementations are used with a FP16 lookup table.
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// The original and float-only results are not equal for all inputs after converting to FP16.
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// GELU is an approximation anyway (tanh), not tested here.
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// For SILU, verify that the results are at least the closest floating point numbers, if the FP16 values don't match.
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for (x = 0; x <= UINT16_MAX; x++) {
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float f = _cvtsh_ss(x);
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const float so = silu_orig(f);
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const float sf = silu_float(f);
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assert( (_cvtss_sh(so, 0) == _cvtss_sh(sf, 0))
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|| (nextafterf(so, sf) == sf)
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|| (nextafterf(sf, so) == so));
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}
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#endif
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}
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