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[feat] enable jit_kernels to skip launch #182

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5933be2
[feat] enable to skip launch kernel
Sep 1, 2025
17406cc
[misc] re-export api
Alcanderian Sep 1, 2025
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8 changes: 7 additions & 1 deletion csrc/apis/runtime.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -6,11 +6,17 @@
namespace deep_gemm::runtime {

static void register_apis(pybind11::module_& m) {
m.def("set_compile_mode", [&](const int& new_compile_mode) {
device_runtime->set_compile_mode(new_compile_mode);
});
m.def("get_compile_mode", [&]() {
return device_runtime->get_compile_mode();
});
m.def("set_num_sms", [&](const int& new_num_sms) {
device_runtime->set_num_sms(new_num_sms);
});
m.def("get_num_sms", [&]() {
return device_runtime->get_num_sms();
return device_runtime->get_num_sms();
});
m.def("set_tc_util", [&](const int& new_tc_util) {
device_runtime->set_tc_util(new_tc_util);
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10 changes: 10 additions & 0 deletions csrc/jit/device_runtime.hpp
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Expand Up @@ -10,6 +10,7 @@ namespace deep_gemm {
class DeviceRuntime {
int num_sms = 0, tc_util = 0;
std::shared_ptr<cudaDeviceProp> cached_prop;
int compile_mode = 0;

public:
explicit DeviceRuntime() = default;
Expand Down Expand Up @@ -51,6 +52,15 @@ class DeviceRuntime {
return num_sms;
}

void set_compile_mode(const int& new_compile_mode) {
DG_HOST_ASSERT(0 <= new_compile_mode and new_compile_mode <= 1);
compile_mode = new_compile_mode;
}

int get_compile_mode() {
return compile_mode;
}

void set_tc_util(const int& new_tc_util) {
DG_HOST_ASSERT(0 <= new_tc_util and new_tc_util <= 100);
tc_util = new_tc_util;
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6 changes: 6 additions & 0 deletions csrc/jit_kernels/impls/runtime_utils.hpp
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Expand Up @@ -170,4 +170,10 @@ static CUtensorMap make_tma_sf_desc(const cute::UMMA::Major& major,
swizzle_mode);
}

#define MAYBE_LAUNCH(EXPR) do { \
if (device_runtime->get_compile_mode() == 0) { \
(EXPR); \
} \
} while (0)

} // namespace deep_gemm
2 changes: 1 addition & 1 deletion csrc/jit_kernels/impls/sm100_bf16_gemm.hpp
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Expand Up @@ -137,7 +137,7 @@ static void sm100_bf16_gemm(const torch::Tensor& a,
};
const auto& code = SM100BF16GemmRuntime::generate(args);
const auto& runtime = compiler->build("sm100_bf16_gemm", code);
SM100BF16GemmRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM100BF16GemmRuntime::launch(runtime, args));
}

} // namespace deep_gemm
8 changes: 4 additions & 4 deletions csrc/jit_kernels/impls/sm100_fp8_gemm_1d1d.hpp
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Expand Up @@ -143,7 +143,7 @@ static void sm100_fp8_gemm_1d1d(const torch::Tensor& a, const torch::Tensor& sfa
};
const auto& code = SM100FP8Gemm1D1DRuntime::generate(args);
const auto& runtime = compiler->build("sm100_fp8_gemm_1d1d", code);
SM100FP8Gemm1D1DRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM100FP8Gemm1D1DRuntime::launch(runtime, args));
}

static void sm100_m_grouped_fp8_gemm_contiguous_1d1d(const torch::Tensor& a, const torch::Tensor& sfa,
Expand Down Expand Up @@ -200,7 +200,7 @@ static void sm100_m_grouped_fp8_gemm_contiguous_1d1d(const torch::Tensor& a, con
};
const auto& code = SM100FP8Gemm1D1DRuntime::generate(args);
const auto& runtime = compiler->build("sm100_m_grouped_fp8_gemm_contiguous_1d1d", code);
SM100FP8Gemm1D1DRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM100FP8Gemm1D1DRuntime::launch(runtime, args));
}

static void sm100_m_grouped_fp8_gemm_masked_1d1d(const torch::Tensor& a, const torch::Tensor& sfa,
Expand Down Expand Up @@ -258,7 +258,7 @@ static void sm100_m_grouped_fp8_gemm_masked_1d1d(const torch::Tensor& a, const t
};
const auto& code = SM100FP8Gemm1D1DRuntime::generate(args);
const auto& runtime = compiler->build("sm100_fp8_m_grouped_gemm_masked_1d1d", code);
SM100FP8Gemm1D1DRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM100FP8Gemm1D1DRuntime::launch(runtime, args));
}

static void fp8_k_grouped_gemm_1d1d(const torch::Tensor& a, const torch::Tensor& sfa,
Expand Down Expand Up @@ -338,7 +338,7 @@ static void fp8_k_grouped_gemm_1d1d(const torch::Tensor& a, const torch::Tensor&
};
const auto& code = SM100FP8Gemm1D1DRuntime::generate(args);
const auto& runtime = compiler->build("sm100_fp8_k_grouped_gemm_1d1d", code);
SM100FP8Gemm1D1DRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM100FP8Gemm1D1DRuntime::launch(runtime, args));
}

} // namespace deep_gemm
6 changes: 3 additions & 3 deletions csrc/jit_kernels/impls/sm100_fp8_gemm_1d2d.hpp
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Expand Up @@ -124,7 +124,7 @@ static void sm100_fp8_gemm_1d2d(const torch::Tensor& a, const torch::Tensor& sfa
};
const auto& code = SM100FP8Gemm1D2DRuntime::generate(args);
const auto& runtime = compiler->build("sm100_fp8_gemm_1d2d", code);
SM100FP8Gemm1D2DRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM100FP8Gemm1D2DRuntime::launch(runtime, args));
}

static void sm100_m_grouped_fp8_gemm_contiguous_1d2d(const torch::Tensor& a, const torch::Tensor& sfa,
Expand Down Expand Up @@ -177,7 +177,7 @@ static void sm100_m_grouped_fp8_gemm_contiguous_1d2d(const torch::Tensor& a, con
};
const auto& code = SM100FP8Gemm1D2DRuntime::generate(args);
const auto& runtime = compiler->build("sm100_m_grouped_fp8_gemm_contiguous_1d2d", code);
SM100FP8Gemm1D2DRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM100FP8Gemm1D2DRuntime::launch(runtime, args));
}

static void sm100_m_grouped_fp8_gemm_masked_1d2d(const torch::Tensor& a, const torch::Tensor& sfa,
Expand Down Expand Up @@ -231,7 +231,7 @@ static void sm100_m_grouped_fp8_gemm_masked_1d2d(const torch::Tensor& a, const t
};
const auto& code = SM100FP8Gemm1D2DRuntime::generate(args);
const auto& runtime = compiler->build("sm100_fp8_m_grouped_gemm_masked_1d2d", code);
SM100FP8Gemm1D2DRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM100FP8Gemm1D2DRuntime::launch(runtime, args));
}

} // namespace deep_gemm
6 changes: 3 additions & 3 deletions csrc/jit_kernels/impls/sm90_bf16_gemm.hpp
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Expand Up @@ -116,7 +116,7 @@ static void sm90_bf16_gemm(const torch::Tensor& a,
};
const auto& code = SM90BF16GemmRuntime::generate(args);
const auto& runtime = compiler->build("sm90_bf16_gemm", code);
SM90BF16GemmRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM90BF16GemmRuntime::launch(runtime, args));
}

static void sm90_m_grouped_bf16_gemm_contiguous(const torch::Tensor& a,
Expand Down Expand Up @@ -169,7 +169,7 @@ static void sm90_m_grouped_bf16_gemm_contiguous(const torch::Tensor& a,
};
const auto& code = SM90BF16GemmRuntime::generate(args);
const auto& runtime = compiler->build("sm90_m_grouped_bf16_gemm_contiguous", code);
SM90BF16GemmRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM90BF16GemmRuntime::launch(runtime, args));
}

static void sm90_bf16_m_grouped_gemm_masked(const torch::Tensor& a,
Expand Down Expand Up @@ -223,7 +223,7 @@ static void sm90_bf16_m_grouped_gemm_masked(const torch::Tensor& a,
};
const auto& code = SM90BF16GemmRuntime::generate(args);
const auto& runtime = compiler->build("sm90_bf16_m_grouped_gemm_masked", code);
SM90BF16GemmRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM90BF16GemmRuntime::launch(runtime, args));
}

} // namespace deep_gemm
6 changes: 3 additions & 3 deletions csrc/jit_kernels/impls/sm90_fp8_gemm_1d2d.hpp
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Expand Up @@ -124,7 +124,7 @@ static void sm90_fp8_gemm_1d2d(const torch::Tensor& a, const torch::Tensor& sfa,
};
const auto& code = SM90FP8Gemm1D2DRuntime::generate(args);
const auto& runtime = compiler->build("sm90_fp8_gemm_1d2d", code);
SM90FP8Gemm1D2DRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM90FP8Gemm1D2DRuntime::launch(runtime, args));
}

static void sm90_m_grouped_fp8_gemm_contiguous_1d2d(const torch::Tensor& a, const torch::Tensor& sfa,
Expand Down Expand Up @@ -183,7 +183,7 @@ static void sm90_m_grouped_fp8_gemm_contiguous_1d2d(const torch::Tensor& a, cons
};
const auto& code = SM90FP8Gemm1D2DRuntime::generate(args);
const auto& runtime = compiler->build("sm90_m_grouped_fp8_gemm_contiguous_1d2d", code);
SM90FP8Gemm1D2DRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM90FP8Gemm1D2DRuntime::launch(runtime, args));
}

static void sm90_m_grouped_fp8_gemm_masked_1d2d(const torch::Tensor& a, const torch::Tensor& sfa,
Expand Down Expand Up @@ -243,7 +243,7 @@ static void sm90_m_grouped_fp8_gemm_masked_1d2d(const torch::Tensor& a, const to
};
const auto& code = SM90FP8Gemm1D2DRuntime::generate(args);
const auto& runtime = compiler->build("sm90_fp8_m_grouped_gemm_masked_1d2d", code);
SM90FP8Gemm1D2DRuntime::launch(runtime, args);
MAYBE_LAUNCH(SM90FP8Gemm1D2DRuntime::launch(runtime, args));
}

} // namespace deep_gemm
2 changes: 2 additions & 0 deletions deep_gemm/__init__.py
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Expand Up @@ -14,6 +14,8 @@
# Configs
import deep_gemm_cpp
from deep_gemm_cpp import (
set_compile_mode,
get_compile_mode,
set_num_sms,
get_num_sms,
set_tc_util,
Expand Down