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1 files changed, 356 insertions, 0 deletions

diff --git a/llama.cpp/tests/test-quantize-perf.cpp b/llama.cpp/tests/test-quantize-perf.cpp
new file mode 100644
index 0000000..cac0782
--- /dev/null
+++ b/llama.cpp/tests/test-quantize-perf.cpp
@@ -0,0 +1,356 @@
+// Benchmark quantization specific functions on synthetic data
+
+#include "ggml.h"
+#include "ggml-cpu.h"
+
+#undef NDEBUG
+#include <algorithm>
+#include <assert.h>
+#include <functional>
+#include <math.h>
+#include <memory>
+#include <stdio.h>
+#include <string>
+#include <vector>
+
+#if defined(_MSC_VER)
+#pragma warning(disable: 4244 4267) // possible loss of data
+#endif
+
+#define MAX_ALIGNMENT 64
+#define QK 32
+#define WARMUP 5
+#define ITERATIONS 10
+#define MAX_ITERATIONS 100000000
+
+#define L1_SIZE      32*128
+#define L2_SIZE     32*2048
+#define L3_SIZE    32*20480
+#define MEM_SIZE 32*2048000
+
+struct quantize_perf_params {
+    std::vector<std::string> include_types;
+    std::vector<size_t> test_sizes;
+    size_t alignment_offset = 0;
+    bool op_quantize_row_q_reference = false;
+    bool op_quantize_row_q = false;
+    bool op_dequantize_row_q = false;
+    bool op_quantize_row_q_dot = false;
+    bool op_vec_dot_q = false;
+    int64_t iterations = ITERATIONS;
+};
+
+#if defined(__x86_64__) || defined(__i386__)
+
+#include <x86intrin.h>
+inline int64_t cpu_cycles() {
+// Rough way to detect new-ish CPUs
+#ifdef __POPCNT__
+    unsigned int dummy;
+    return __rdtscp(&dummy);
+#else
+    return __rdtsc();
+#endif
+}
+
+#else
+
+#define cpu_cycles() 0
+
+#endif
+
+
+// Generate synthetic data
+static void generate_data(float offset, size_t n, float * dst) {
+    for (size_t i = 0; i < n; i++) {
+        dst[i] = 0.1 + 2*cosf(i + offset);
+    }
+}
+
+static float gigabytes_per_second(size_t bytes, int64_t usecs) {
+    return bytes / (float) usecs * 1000000 / (1024*1024*1024);
+}
+
+static void * align_with_offset(void * ptr, int offset) {
+    size_t dummy_size = MAX_ALIGNMENT * 4;
+    return (char *) std::align(MAX_ALIGNMENT, MAX_ALIGNMENT, ptr, dummy_size) + offset;
+}
+
+static void benchmark_function(size_t size, size_t q_size, int64_t iterations, const std::function<float(void)> & func) {
+    int64_t min_time_us = INT64_MAX;
+    int64_t total_time_us = 0;
+    int64_t min_time_cycles = INT64_MAX;
+    int64_t total_time_cycles = 0;
+
+    for (int i = 0; i < WARMUP; i++) {
+        func();
+    }
+
+    for (int i = 0; i < iterations; i++) {
+        const int64_t start_time = ggml_time_us();
+        const int64_t start_cycles = cpu_cycles();
+
+        func();
+
+        const int64_t end_cycles = cpu_cycles();
+        const int64_t end_time = ggml_time_us();
+
+        total_time_cycles += end_cycles - start_cycles;
+        min_time_cycles = std::min(min_time_cycles, end_cycles - start_cycles);
+        total_time_us += end_time - start_time;
+        min_time_us = std::min(min_time_us, end_time - start_time);
+    }
+
+    printf("      min cycles/%d vals   : %9.2f\n",  QK, QK * min_time_cycles / (float) size);
+    printf("      avg cycles/%d vals   : %9.2f\n",  QK, QK * total_time_cycles / (float) (size * iterations));
+    printf("      float32 throughput   : %9.2f GB/s\n",  gigabytes_per_second(4 * size * iterations, total_time_us));
+    printf("      quantized throughput : %9.2f GB/s\n",  gigabytes_per_second(q_size * iterations, total_time_us));
+}
+
+static void usage(char * argv[]) {
+    printf("Benchmark quantization specific functions on synthetic data\n");
+    printf("\n");
+    printf("usage: %s [options]\n", argv[0]);
+    printf("\n");
+    printf("options: (default)\n");
+    printf("  -h, --help            show this help message and exit\n");
+    printf("  --size SIZE           set test size, divisible by 32 (L1_SIZE:%d)\n", L1_SIZE);
+    printf("  -3                    use size as L1, L2, L3 sizes (L1:%d L2:%d L3:%d)\n", L1_SIZE, L2_SIZE, L3_SIZE);
+    printf("  -4                    use size as L1, L2, L3, MEM sizes (L1:%d L2:%d L3:%d MEM:%d)\n", L1_SIZE, L2_SIZE, L3_SIZE, MEM_SIZE);
+    printf("  --op OP               set test operation as quantize_row_q_reference, quantize_row_q, dequantize_row_q,\n");
+    printf("                        quantize_row_q_dot, vec_dot_q (all)\n");
+    printf("  --type TYPE           set test type as");
+    for (int i = 0; i < GGML_TYPE_COUNT; i++) {
+        ggml_type type = (ggml_type) i;
+        const auto * qfns     = ggml_get_type_traits(type);
+        const auto * qfns_cpu = ggml_get_type_traits_cpu(type);
+        if (ggml_type_name(type) != NULL) {
+            if (qfns_cpu->from_float && qfns->to_float) {
+                printf(" %s", ggml_type_name(type));
+            }
+        }
+    }
+    printf(" (all)\n");
+    printf("  --alignment-offset OFFSET\n");
+    printf("                        set alignment offset as OFFSET (0)\n");
+    printf("  -i NUM, --iterations NUM\n");
+    printf("                        set test iteration number (%d)\n", ITERATIONS);
+}
+
+int main(int argc, char * argv[]) {
+    quantize_perf_params params {};
+
+    // read command line
+
+    bool invalid_param = false;
+    std::string arg;
+    for (int i = 1; i < argc; i++) {
+        arg = argv[i];
+
+        if (arg == "--size") {
+            if (++i >= argc) {
+                invalid_param = true;
+                break;
+            }
+            size_t size = std::stoi(argv[i]);
+            if (size % 32 != 0) {
+                fprintf(stderr, "error: size %zu not divisible by 32\n", size);
+                invalid_param = true;
+                break;
+            }
+            params.test_sizes.push_back(size);
+        } else if (arg == "-3") {
+            // quick select sizes that probably fit in CPU caches
+            params.test_sizes.push_back(L1_SIZE);
+            params.test_sizes.push_back(L2_SIZE);
+            params.test_sizes.push_back(L3_SIZE);
+        } else if (arg == "-4") {
+            // quick select cache sizes + memory
+            params.test_sizes.push_back(L1_SIZE);
+            params.test_sizes.push_back(L2_SIZE);
+            params.test_sizes.push_back(L3_SIZE);
+            params.test_sizes.push_back(MEM_SIZE);
+        } else if (arg == "--op") {
+            if (++i >= argc) {
+                invalid_param = true;
+                break;
+            }
+            std::string op {argv[i]};
+            if (op == "quantize_row_q_reference") {
+                params.op_quantize_row_q_reference = true;
+            } else if (op == "quantize_row_q") {
+                params.op_quantize_row_q = true;
+            } else if (op == "dequantize_row_q") {
+                params.op_dequantize_row_q = true;
+            } else if (op == "quantize_row_q_dot") {
+                params.op_quantize_row_q_dot = true;
+            } else if (op == "vec_dot_q") {
+                params.op_vec_dot_q = true;
+            } else {
+                invalid_param = true;
+                break;
+            }
+        } else if (arg == "--type") {
+            if (++i >= argc) {
+                invalid_param = true;
+                break;
+            }
+            params.include_types.push_back(argv[i]);
+        } else if (arg == "--alignment-offset") {
+            if (++i >= argc) {
+                invalid_param = true;
+                break;
+            }
+            int alignment = std::stoi(argv[i]);
+            if (alignment < 0 || alignment > MAX_ALIGNMENT) {
+            fprintf(stderr, "error: alignment-offset must be less than %d\n", MAX_ALIGNMENT);
+                invalid_param = true;
+                break;
+            }
+            params.alignment_offset = alignment;
+        } else if ((arg == "-i") || (arg == "--iterations")) {
+            if (++i >= argc) {
+                invalid_param = true;
+                break;
+            }
+            int number = std::stoi(argv[i]);
+            if (number < 0 || number > MAX_ITERATIONS) {
+            fprintf(stderr, "error: iterations must be less than %d\n", MAX_ITERATIONS);
+                invalid_param = true;
+                break;
+            }
+            params.iterations = number;
+        } else if ((arg == "-h") || (arg == "--help")) {
+            usage(argv);
+            return 1;
+        } else {
+            fprintf(stderr, "error: unknown argument: %s\n", arg.c_str());
+            return 1;
+        }
+    }
+    if (invalid_param) {
+        fprintf(stderr, "error: invalid parameter for argument: %s\n", arg.c_str());
+        return 1;
+    }
+
+    if (params.test_sizes.empty()) {
+        params.test_sizes.push_back(L1_SIZE);
+    }
+    if (!(params.op_quantize_row_q_reference || params.op_quantize_row_q || params.op_dequantize_row_q || params.op_quantize_row_q_dot || params.op_vec_dot_q)) {
+        params.op_quantize_row_q_reference = params.op_quantize_row_q = params.op_dequantize_row_q = params.op_quantize_row_q_dot = params.op_vec_dot_q = true;
+    }
+
+    std::sort(params.test_sizes.begin(), params.test_sizes.end());
+    size_t largest = params.test_sizes.back();
+
+    std::vector<uint8_t> test_data1_v(largest*4 + MAX_ALIGNMENT*2);
+    std::vector<uint8_t> test_data2_v(largest*4 + MAX_ALIGNMENT*2);
+    std::vector<uint8_t> test_q1_v   (largest*4 + MAX_ALIGNMENT*2);
+    std::vector<uint8_t> test_q2_v   (largest*4 + MAX_ALIGNMENT*2);
+    std::vector<uint8_t> test_out_v  (largest*4 + MAX_ALIGNMENT*2);
+
+    float * test_data1 = (float *) align_with_offset(test_data1_v.data(), params.alignment_offset);
+    float * test_data2 = (float *) align_with_offset(test_data2_v.data(), params.alignment_offset);
+    float * test_q1    = (float *) align_with_offset(test_q1_v.data(),    params.alignment_offset);
+    float * test_q2    = (float *) align_with_offset(test_q2_v.data(),    params.alignment_offset);
+    float * test_out   = (float *) align_with_offset(test_out_v.data(),   params.alignment_offset);
+
+    generate_data(0, largest, test_data1);
+    generate_data(1, largest, test_data2);
+
+    int64_t iterations = params.iterations;
+
+    ggml_cpu_init();
+
+    for (int i = 0; i < GGML_TYPE_COUNT; i++) {
+        ggml_type type = (ggml_type) i;
+        const auto * qfns = ggml_get_type_traits(type);
+        const auto * qfns_cpu = ggml_get_type_traits_cpu(type);
+        if (!params.include_types.empty() && ggml_type_name(type) && std::find(params.include_types.begin(), params.include_types.end(), ggml_type_name(type)) == params.include_types.end()) {
+            continue;
+        }
+
+        if (qfns_cpu->from_float && qfns->to_float) {
+            printf("%s\n", ggml_type_name(type));
+
+            ggml_quantize_init(type);
+
+            if (params.op_quantize_row_q_reference) {
+                printf("  quantize_row_q_reference\n");
+                for (size_t size : params.test_sizes) {
+                    printf("    %zu values (%.2f MB)\n", size, 4*size/(float)(1024*1024));
+                    auto quantize_fn = [&](void) -> float {
+                        qfns->from_float_ref(test_data1, test_q1, size);
+                        return test_q1[0];
+                    };
+                    size_t quantized_size = ggml_row_size(type, size);
+                    benchmark_function(size, quantized_size, iterations, quantize_fn);
+                }
+                printf("\n");
+            }
+
+            if (params.op_quantize_row_q) {
+                printf("  quantize_row_q\n");
+                for (size_t size : params.test_sizes) {
+                    printf("    %zu values (%.2f MB)\n", size, 4*size/(float)(1024*1024));
+                    auto quantize_fn = [&](void) -> float {
+                        qfns_cpu->from_float(test_data1, test_q1, size);
+                        return test_q1[0];
+                    };
+                    size_t quantized_size = ggml_row_size(type, size);
+                    benchmark_function(size, quantized_size, iterations, quantize_fn);
+                }
+                printf("\n");
+            }
+
+            if (params.op_dequantize_row_q) {
+                printf("  dequantize_row_q\n");
+                qfns_cpu->from_float(test_data1, test_q1, largest);
+                for (size_t size : params.test_sizes) {
+                    printf("    %zu values (%.2f MB)\n", size, 4*size/(float)(1024*1024));
+                    auto quantize_fn = [&](void) -> float {
+                        qfns->to_float(test_q1, test_out, size);
+                        return test_out[0];
+                    };
+                    size_t quantized_size = ggml_row_size(type, size);
+                    benchmark_function(size, quantized_size, iterations, quantize_fn);
+                }
+                printf("\n");
+            }
+
+            if (params.op_quantize_row_q_dot) {
+                printf("  quantize_row_q_dot\n");
+                for (size_t size : params.test_sizes) {
+                    printf("    %zu values (%.2f MB)\n", size, 4*size/(float)(1024*1024));
+                    auto quantize_fn = [&](void) -> float {
+                        const auto * vdot = ggml_get_type_traits_cpu(qfns_cpu->vec_dot_type);
+                        vdot->from_float(test_data1, test_q1, size);
+                        return test_q1[0];
+                    };
+                    size_t quantized_size = ggml_row_size(type, size);
+                    benchmark_function(size, quantized_size, iterations, quantize_fn);
+                }
+                printf("\n");
+            }
+
+            if (params.op_vec_dot_q) {
+                printf("  vec_dot_q\n");
+                qfns_cpu->from_float(test_data1, test_q1, largest);
+                qfns_cpu->from_float(test_data2, test_q2, largest);
+                for (size_t size : params.test_sizes) {
+                    printf("    %zu values (%.2f MB)\n", size, 4*size/(float)(1024*1024));
+                    auto quantize_fn = [&](void) -> float {
+                        float result;
+                        qfns_cpu->vec_dot(size, &result, 0, test_q1, 0, test_q2, 0, 1);
+                        return result;
+                    };
+                    size_t quantized_size = ggml_row_size(type, size);
+                    benchmark_function(size, quantized_size, iterations, quantize_fn);
+                }
+                printf("\n");
+            }
+        }
+    }
+
+    return 0;
+}