File size: 5,107 Bytes
c59fd93 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 | #include "fa-vec.h"
#include "ggml-backend.h"
#include "ggml.h"
#include <cstdio>
#include <cstdlib>
#include <cstring>
struct tuner_def {
const char * name;
bool (*run)(ggml_backend_t, ggml_backend_dev_t, const tuner_opts &);
};
static const tuner_def k_tuners[] = {
{ "fa-vec", tuner_fa_vec_run },
};
static void usage(const char * argv0) {
printf("usage: %s <tuner> [options]\n", argv0);
printf("\n");
printf(" offline kernel tuner for the Metal backend: sweeps a kernel's config grid and\n");
printf(" prints pasteable table rows for the machine it runs on. never a pass/fail test.\n");
printf("\n");
printf(" tuners:\n");
printf(" fa-vec flash-attn vec (Q,NE) for ggml-metal-tuning.cpp\n");
printf("\n");
printf(" options:\n");
printf(" -b <name> backend device (default: first Metal device)\n");
printf(" --dtype <list> restrict KV dtypes, e.g. f16,q4_0 (default: all)\n");
printf(" --dk <list> restrict head sizes, e.g. 128,192 (default: all)\n");
printf(" --reps <n> timed reps per candidate, odd for an exact median (default: 7)\n");
printf(" --seed <n> RNG seed; per-cell seeds mix it with the shape (default: 1234)\n");
printf(" --no-cooldown do not pause/re-measure on thermal drift, only warn\n");
printf(" --cool-drift <f> anchor drift that triggers a cooldown (default: 0.10)\n");
printf(" --cool-eps <f> anchor tolerance to consider the GPU cool again (default: 0.03)\n");
printf(" --cool-max-wait <s> give up cooling a cell after this many seconds (default: 120)\n");
printf(" --cool-max-retry <n> re-measure rounds per cell before giving up (default: 2)\n");
printf("\n");
printf(" the table goes to stdout, all diagnostics to stderr:\n");
printf(" %s fa-vec > rows.txt 2> sweep.log\n", argv0);
}
int main(int argc, char ** argv) {
const char * tuner = nullptr;
const char * bname = nullptr;
tuner_opts opts;
for (int i = 1; i < argc; i++) {
const char * a = argv[i];
if (strcmp(a, "-h") == 0 || strcmp(a, "--help") == 0) {
usage(argv[0]);
return 0;
} else if (strcmp(a, "-b") == 0 && i + 1 < argc) {
bname = argv[++i];
} else if (strcmp(a, "--dtype") == 0 && i + 1 < argc) {
opts.dtype_filter = argv[++i];
} else if (strcmp(a, "--dk") == 0 && i + 1 < argc) {
opts.dk_filter = argv[++i];
} else if (strcmp(a, "--reps") == 0 && i + 1 < argc) {
opts.reps = atoi(argv[++i]);
} else if (strcmp(a, "--seed") == 0 && i + 1 < argc) {
opts.seed = (unsigned) strtoul(argv[++i], nullptr, 10);
} else if (strcmp(a, "--no-cooldown") == 0) {
opts.cooldown = false;
} else if (strcmp(a, "--cool-drift") == 0 && i + 1 < argc) {
opts.cool_drift = atof(argv[++i]);
} else if (strcmp(a, "--cool-eps") == 0 && i + 1 < argc) {
opts.cool_eps = atof(argv[++i]);
} else if (strcmp(a, "--cool-max-wait") == 0 && i + 1 < argc) {
opts.cool_max_wait = atoi(argv[++i]);
} else if (strcmp(a, "--cool-max-retry") == 0 && i + 1 < argc) {
opts.cool_max_retry = atoi(argv[++i]);
} else if (a[0] != '-' && tuner == nullptr) {
tuner = a;
} else {
fprintf(stderr, "error: unrecognized or incomplete argument: %s\n\n", a);
usage(argv[0]);
return 1;
}
}
if (tuner == nullptr) {
usage(argv[0]);
return 1;
}
if (opts.reps < 1) {
fprintf(stderr, "error: --reps must be >= 1\n");
return 1;
}
const tuner_def * t = nullptr;
for (const auto & cand : k_tuners) {
if (strcmp(tuner, cand.name) == 0) {
t = &cand;
break;
}
}
if (t == nullptr) {
fprintf(stderr, "error: unknown tuner: %s\n\n", tuner);
usage(argv[0]);
return 1;
}
ggml_backend_load_all();
ggml_backend_dev_t dev = nullptr;
for (size_t i = 0; i < ggml_backend_dev_count(); i++) {
ggml_backend_dev_t d = ggml_backend_dev_get(i);
if (bname) {
if (strcmp(ggml_backend_dev_name(d), bname) == 0) {
dev = d;
break;
}
} else if (strncmp(ggml_backend_dev_name(d), "MTL", 3) == 0) {
dev = d;
break;
}
}
if (dev == nullptr) {
fprintf(stderr, "error: no %s device found\n", bname ? bname : "Metal");
return 1;
}
ggml_backend_t backend = ggml_backend_dev_init(dev, nullptr);
if (backend == nullptr) {
fprintf(stderr, "error: failed to init backend %s\n", ggml_backend_dev_name(dev));
return 1;
}
fprintf(stderr, "device: %s (%s)\n", ggml_backend_dev_name(dev), ggml_backend_dev_description(dev));
const bool ok = t->run(backend, dev, opts);
ggml_backend_free(backend);
ggml_quantize_free();
return ok ? 0 : 1;
}
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