mirror of
https://github.com/ROCm/composable_kernel.git
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ec006bb8e0
* Improve random number generation * use different seed for each input (Q, K, V...); * use deterministic generation of: * seqstart_q/k (for group mode); * block_table (for paged-kvcahe); * cache_batch_idx (for kvcache); * Extract arg_parser-related code from run functions to use them as tests * Split examples into main programs and fmha runners, build instances separately * Add dummy tests that use instances and runners * Fix a missed corner case of f32->f8 conversion When value if < min f8 denormal but > min f8 denormal / 2, it must be rounded to min f8 denormal (i.e. 0b1), not to 0. * Fix incorrect fp8 scales for P and O in validation code DataTypeConfig was incorrectly compared with fp8_t. * Add host generation of dropout random values and use it for validation Previously host validation (reference_batched_dropout) used random numbers generated by BlockDropout of the kernel, meaning that incorrect generation on device (bad distribution, repeated numbers, too many zeros, etc.) would not trigger any validation errors. * Implement tests from smoke_test_bwd.sh * Return result as enum to distinguish failure and missing instance * Add tests for bwd features: bias, alibi, dropout * Implement tests from smoke_test_fwd.sh * Pass seqlen_q/k as vectors to fwd and bwd runners * Add tests for fwd features: bias, alibi, dropout * Add tests for pagedkv and splitkv * Fix conditions when to use splitkv and pagedkv kernels splitkv was executed only when use_kvcache which == (need_append_kvcache || use_cache_batch_idx || 0 < page_block_size). In the SplitKV tests: the regular fwd kernel was executed if use_cache_batch_idx was not requested even when num_splitkv > 1. In the AppendKV tests: the pagedkv kernel was executed but it often failed to find an instance. * Add tests for appendkv * Use is_v_rowmajor = true because there are no instances with column layout anymore * Split public and private compile options for instances Tests and examples need to know only about CK_TILE_FMHA_FWD_*_API. * Improve parsing validation in bias and mask * Pass bias as string for consistency with mask * Catch parsing and other exceptions * Add bwd test for deterministic flag * Initialize fp8 tensors (-init=ufq) similarly to uf * Fix splitkv/pagedkv invocation: use padded sk when seqlen_k_ptr is not null seqlen_k cannot be used to determine padding when seqlen_k_ptr is provided. The actual seqlen_k is taken from seqlen_k_ptr[b]. Even seqlen_k values (% bn0 == 0) use padded seqlen_k while seqlen_k_ptr may contain arbitrary values. In the example or tests this produces incorrect results with appendkv (for example, -d=32 -s=1 -s_k=64 -s_knew=7 -vlayout=c -b=8). * Fix use_pagedkv value when kvcache = true but page_block_size = 0 In this case block_table_ptr is nullptr which is accessed in the kernel. * Clean up bwd tests * Unify fwd tests for f16/bf16 and fp8 * Use better explicit instantiation declaration for fmha_bwd<2> * Use the same seed for all tests, allow to override it with env variable * Undo clang-format of one irrelevant file For some reason my local clang-format-18 and the one in CI work differently. * Do not build instances and tests on unsupported archs * Build instance libraries as OBJECT library * CI: Enable sccache for HIP There are source files with LANGUAGE HIP, they need -DCMAKE_HIP_COMPILER_LAUNCHER=sccache * Add tests to REGRESSION_TESTS * Fix OOB accesses in deterministic bwd due to incorrectly assumed kN0 The runner assumes kN0 = (hdim_q <= 128) ? 128 : 64 but there are smaller tiles (for tr_load or fp32). This can create too small dq_acc_buf. * Pass CK_TILE_FMHA_FWD_*_API as INTERFACE compile options The instances don't actually depend on them, only examples and tests do. Passing these definitions as INTERFACE allows to change FMHA_FWD_ENABLE_APIS without recompiling instances that are already in ccache. * Fix formatting and names
184 lines
8.2 KiB
C++
184 lines
8.2 KiB
C++
// SPDX-License-Identifier: MIT
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// Copyright (c) 2018-2025, Advanced Micro Devices, Inc. All rights reserved.
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#include "ck_tile/host.hpp"
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#include "fmha_bwd.hpp"
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#include "fmha_bwd_runner.hpp"
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#include <string>
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auto create_args(int argc, char* argv[])
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{
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ck_tile::ArgParser arg_parser;
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arg_parser.insert("v", "1", "whether do CPU validation or not")
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.insert("mode", "0", "kernel mode. 0:batch, 1:group")
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.insert("b", "2", "batch size")
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.insert("h", "8", "num of head, for q")
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.insert("h_k",
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"-1",
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"num of head, for k/v, -1 means equal to h\n"
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"if not equal to h, then this is GQA/MQA case")
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.insert("s",
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"3328",
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"seqlen_q. if group-mode, means the average value of seqlen_q\n"
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"total_seqlen_q = seqlen_q * batch, and seqlen_q per batch may vary\n"
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"also with \"-s=s0,s1,s2...\" comma-separated ints to set seqlen per batch "
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"(group mode)")
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.insert("s_k",
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"-1",
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"seqlen_k, -1 means equal to s\n"
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"also with \"-s_k=s0,s1,s2...\" comma-separated ints to set seqlen per batch "
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"(group mode)")
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.insert("d", "128", "head dim for q, k")
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.insert("d_v", "-1", "head dim for v, -1 means equal to d")
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.insert("scale", "0", "scale factor. 0 means equal to 1/sqrt(hdim)")
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.insert("iperm",
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"1",
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"permute input\n"
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"if true, will be b*h*s*d, else b*s*h*d")
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.insert("operm", "1", "permute output")
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.insert("bias",
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"n",
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"n or 0, no bias\n"
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"e(lementwise) or 1, elementwise bias with 1*1*s*s. e:1, 1*h*s*s. e:2, b*h*s*s\n"
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"a(libi) or 2, alibi with 1*h. a:1, b*h")
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.insert("dbias", "0", "output bias gradient or not")
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.insert("prec", "fp16", "data type. fp16 or bf16")
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.insert("mask",
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"0",
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"0: no mask, 1: top-left(same as 't'), 2:bottom-right(same as 'b')\n"
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"'t', top-left causal mask, 'b', bottom-r causal mask\n"
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"'t:l,r', top-left sliding window attn(swa) with FA style left right size\n"
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"'b:l,r', bottom-r sliding window attn(swa) with FA style left right size\n"
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"'xt:window_size', xformer style masking from top-left, window_size negative is "
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"causal, positive is swa\n"
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"'xb:window_size', xformer style masking from bottom-r, window_size negative is "
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"causal, positive is swa\n"
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"'g:y,x', generic attention mask coordinate with y/x size (only debug purpose for "
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"now)")
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.insert("kname", "0", "if set to 1 will print kernel name")
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.insert("init",
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"uf",
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"init method:\n ui or 0 - uniform random int\n uf or 1 - uniform random float"
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"\n tf or 2 - trig float")
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.insert("seed",
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"11939",
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"random seed used for initializing input tensors. 0 for "
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"non-deterministic seed")
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.insert("p_drop", "0", "0~1 probability of dropout")
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.insert("drop_seed", "1", "seed for dropout random number generator")
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.insert("drop_offset", "0", "offset for dropout random number generator")
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.insert(
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"drop_prefs",
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"0",
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"whether dropout seed and offset values are present on GPU; 0 - host, 1 - device/GPU")
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.insert("timer", "gpu", "gpu:gpu timer, cpu:cpu timer")
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.insert("warmup", "5", "number of iterations before benchmark the kernel")
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.insert("repeat", "20", "number of iterations to benchmark the kernel")
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.insert("deterministic",
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"0",
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"if set to 1 will use multi-buffer reduction strategy for dq, atomic operation "
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"will not be used")
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.insert("json", "0", "0: No Json, 1: Dump Results in Json format")
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.insert("jsonfile", "fmha_bwd.json", "json file name to dump results");
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bool result = arg_parser.parse(argc, argv);
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return std::make_tuple(result, arg_parser);
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}
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template <typename DataTypeConfig>
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auto run(const ck_tile::ArgParser& arg_parser)
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{
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std::string data_type = arg_parser.get_str("prec");
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int do_validation = arg_parser.get_int("v");
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mode_enum mode = static_cast<mode_enum>(arg_parser.get_uint32("mode"));
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ck_tile::index_t batch = arg_parser.get_int("b");
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ck_tile::index_t nhead = arg_parser.get_int("h");
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ck_tile::index_t nhead_k = arg_parser.get_int("h_k");
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auto seqlen_qs = arg_parser.get_int_vec("s");
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auto seqlen_ks = arg_parser.get_int_vec("s_k");
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ck_tile::index_t hdim_q = arg_parser.get_int("d");
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ck_tile::index_t hdim_v = arg_parser.get_int("d_v");
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bool i_perm = arg_parser.get_bool("iperm");
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bool o_perm = arg_parser.get_bool("operm");
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float scale = arg_parser.get_float("scale");
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std::string bias_str = arg_parser.get_str("bias");
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bool use_dbias = arg_parser.get_bool("dbias");
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float p_drop = arg_parser.get_float("p_drop");
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uint64_t drop_seed = arg_parser.get_uint64("drop_seed");
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uint64_t drop_offset = arg_parser.get_uint64("drop_offset");
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bool drop_prefs = arg_parser.get_bool("drop_prefs");
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std::string mask_str = arg_parser.get_str("mask");
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bool deterministic = arg_parser.get_bool("deterministic");
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std::string init_method = arg_parser.get_str("init");
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uint32_t seed = arg_parser.get_uint32("seed");
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ck_tile::stream_config stream_config{nullptr,
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true,
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/* log_level = */ (arg_parser.get_bool("kname") ? 1 : 0),
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arg_parser.get_int("warmup"),
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arg_parser.get_int("repeat"),
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arg_parser.get_str("timer") == std::string("gpu")};
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auto json = arg_parser.get_int("json") == 1
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? std::optional<std::string>{arg_parser.get_str("jsonfile")}
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: std::nullopt;
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return fmha_bwd_run<DataTypeConfig>(mode,
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batch,
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nhead,
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nhead_k,
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seqlen_qs,
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seqlen_ks,
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hdim_q,
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hdim_v,
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i_perm,
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o_perm,
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scale,
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bias_str,
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use_dbias,
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p_drop,
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drop_seed,
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drop_offset,
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drop_prefs,
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mask_str,
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deterministic,
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init_method,
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seed,
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do_validation,
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stream_config,
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json);
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}
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int main(int argc, char* argv[])
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{
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try
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{
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auto [result, arg_parser] = create_args(argc, argv);
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if(!result)
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return -1;
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const std::string data_type = arg_parser.get_str("prec");
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if(data_type == "fp16")
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{
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return run<FmhaBwdFp16>(arg_parser) == bwd_result::success ? 0 : -2;
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}
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else if(data_type == "bf16")
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{
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return run<FmhaBwdBf16>(arg_parser) == bwd_result::success ? 0 : -2;
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}
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std::cerr << "Unsupported precision: " << data_type << std::endl;
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return -1;
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}
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catch(const std::invalid_argument& e)
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{
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std::cerr << "Invalid argument: " << e.what() << std::endl;
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return -1;
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}
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catch(const std::exception& e)
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{
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std::cerr << "Error: " << e.what() << std::endl;
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return -2;
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}
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}
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