完了，deepseek把GPU上的fp8的汇编代码开源了。

[goodegg]

囼蛙你有什么干货？说说

400行汇编，就别吹了，写过程序的人都知道这是什么工作量。想靠这个打垮女大，痴人说梦

[clearjks]

这是狗屁的汇编，这丫的是C的代码吧！

#pragma once

#include <cuda.h>

#include "utils.cuh"

namespace deep_gemm {

struct SM90_64x16x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %10, 0;\n"
"wgmma.mma_async.sync.aligned.m64n16k32.f32.e4m3.e4m3"
"{%0, %1, %2, %3, %4, %5, %6, %7},"
" %8,"
" %9,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 16;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x24x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %14, 0;\n"
"wgmma.mma_async.sync.aligned.m64n24k32.f32.e4m3.e4m3"
"{%0, %1, %2, %3, %4, %5, %6, %7, "
" %8, %9, %10, %11},"
" %12,"
" %13,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 24;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x32x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %18, 0;\n"
"wgmma.mma_async.sync.aligned.m64n32k32.f32.e4m3.e4m3"
"{%0, %1, %2, %3, %4, %5, %6, %7, "
" %8, %9, %10, %11, %12, %13, %14, %15},"
" %16,"
" %17,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 32;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x40x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %22, 0;\n"
"wgmma.mma_async.sync.aligned.m64n40k32.f32.e4m3.e4m3"
"{%0, %1, %2, %3, %4, %5, %6, %7, "
" %8, %9, %10, %11, %12, %13, %14, %15, "
" %16, %17, %18, %19},"
" %20,"
" %21,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 40;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x48x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19, float& d20, float& d21, float& d22, float& d23,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %26, 0;\n"
"wgmma.mma_async.sync.aligned.m64n48k32.f32.e4m3.e4m3"
"{%0, %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,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19), "+f"(d20), "+f"(d21), "+f"(d22), "+f"(d23)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19], d[20], d[21], d[22], d[23],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 48;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x56x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19, float& d20, float& d21, float& d22, float& d23,
float& d24, float& d25, float& d26, float& d27,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %30, 0;\n"
"wgmma.mma_async.sync.aligned.m64n56k32.f32.e4m3.e4m3"
"{%0, %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,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19), "+f"(d20), "+f"(d21), "+f"(d22), "+f"(d23),
"+f"(d24), "+f"(d25), "+f"(d26), "+f"(d27)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19], d[20], d[21], d[22], d[23],
d[24], d[25], d[26], d[27],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 56;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x64x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19, float& d20, float& d21, float& d22, float& d23,
float& d24, float& d25, float& d26, float& d27, float& d28, float& d29, float& d30, float& d31,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %34, 0;\n"
"wgmma.mma_async.sync.aligned.m64n64k32.f32.e4m3.e4m3"
"{%0, %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,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19), "+f"(d20), "+f"(d21), "+f"(d22), "+f"(d23),
"+f"(d24), "+f"(d25), "+f"(d26), "+f"(d27), "+f"(d28), "+f"(d29), "+f"(d30), "+f"(d31)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19], d[20], d[21], d[22], d[23],
d[24], d[25], d[26], d[27], d[28], d[29], d[30], d[31],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 64;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x72x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19, float& d20, float& d21, float& d22, float& d23,
float& d24, float& d25, float& d26, float& d27, float& d28, float& d29, float& d30, float& d31,
float& d32, float& d33, float& d34, float& d35,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %38, 0;\n"
"wgmma.mma_async.sync.aligned.m64n72k32.f32.e4m3.e4m3"
"{%0, %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,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19), "+f"(d20), "+f"(d21), "+f"(d22), "+f"(d23),
"+f"(d24), "+f"(d25), "+f"(d26), "+f"(d27), "+f"(d28), "+f"(d29), "+f"(d30), "+f"(d31),
"+f"(d32), "+f"(d33), "+f"(d34), "+f"(d35)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19], d[20], d[21], d[22], d[23],
d[24], d[25], d[26], d[27], d[28], d[29], d[30], d[31],
d[32], d[33], d[34], d[35],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 72;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x80x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19, float& d20, float& d21, float& d22, float& d23,
float& d24, float& d25, float& d26, float& d27, float& d28, float& d29, float& d30, float& d31,
float& d32, float& d33, float& d34, float& d35, float& d36, float& d37, float& d38, float& d39,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %42, 0;\n"
"wgmma.mma_async.sync.aligned.m64n80k32.f32.e4m3.e4m3"
"{%0, %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,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19), "+f"(d20), "+f"(d21), "+f"(d22), "+f"(d23),
"+f"(d24), "+f"(d25), "+f"(d26), "+f"(d27), "+f"(d28), "+f"(d29), "+f"(d30), "+f"(d31),
"+f"(d32), "+f"(d33), "+f"(d34), "+f"(d35), "+f"(d36), "+f"(d37), "+f"(d38), "+f"(d39)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19], d[20], d[21], d[22], d[23],
d[24], d[25], d[26], d[27], d[28], d[29], d[30], d[31],
d[32], d[33], d[34], d[35], d[36], d[37], d[38], d[39],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 80;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x88x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19, float& d20, float& d21, float& d22, float& d23,
float& d24, float& d25, float& d26, float& d27, float& d28, float& d29, float& d30, float& d31,
float& d32, float& d33, float& d34, float& d35, float& d36, float& d37, float& d38, float& d39,
float& d40, float& d41, float& d42, float& d43,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %46, 0;\n"
"wgmma.mma_async.sync.aligned.m64n88k32.f32.e4m3.e4m3"
"{%0, %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,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19), "+f"(d20), "+f"(d21), "+f"(d22), "+f"(d23),
"+f"(d24), "+f"(d25), "+f"(d26), "+f"(d27), "+f"(d28), "+f"(d29), "+f"(d30), "+f"(d31),
"+f"(d32), "+f"(d33), "+f"(d34), "+f"(d35), "+f"(d36), "+f"(d37), "+f"(d38), "+f"(d39),
"+f"(d40), "+f"(d41), "+f"(d42), "+f"(d43)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19], d[20], d[21], d[22], d[23],
d[24], d[25], d[26], d[27], d[28], d[29], d[30], d[31],
d[32], d[33], d[34], d[35], d[36], d[37], d[38], d[39],
d[40], d[41], d[42], d[43],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 88;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

[big5]

这个是什么汇编？
为啥跟我几十年前学的C语言那么像？

#pragma once

#include <cuda.h>

#include "utils.cuh"

namespace deep_gemm {

struct SM90_64x16x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %10, 0;\n"
"wgmma.mma_async.sync.aligned.m64n16k32.f32.e4m3.e4m3"
"{%0, %1, %2, %3, %4, %5, %6, %7},"
" %8,"
" %9,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 16;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x24x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %14, 0;\n"
"wgmma.mma_async.sync.aligned.m64n24k32.f32.e4m3.e4m3"
"{%0, %1, %2, %3, %4, %5, %6, %7, "
" %8, %9, %10, %11},"
" %12,"
" %13,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 24;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x32x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %18, 0;\n"
"wgmma.mma_async.sync.aligned.m64n32k32.f32.e4m3.e4m3"
"{%0, %1, %2, %3, %4, %5, %6, %7, "
" %8, %9, %10, %11, %12, %13, %14, %15},"
" %16,"
" %17,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 32;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x40x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %22, 0;\n"
"wgmma.mma_async.sync.aligned.m64n40k32.f32.e4m3.e4m3"
"{%0, %1, %2, %3, %4, %5, %6, %7, "
" %8, %9, %10, %11, %12, %13, %14, %15, "
" %16, %17, %18, %19},"
" %20,"
" %21,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 40;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x48x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19, float& d20, float& d21, float& d22, float& d23,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %26, 0;\n"
"wgmma.mma_async.sync.aligned.m64n48k32.f32.e4m3.e4m3"
"{%0, %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,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19), "+f"(d20), "+f"(d21), "+f"(d22), "+f"(d23)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19], d[20], d[21], d[22], d[23],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 48;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x56x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19, float& d20, float& d21, float& d22, float& d23,
float& d24, float& d25, float& d26, float& d27,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %30, 0;\n"
"wgmma.mma_async.sync.aligned.m64n56k32.f32.e4m3.e4m3"
"{%0, %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,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19), "+f"(d20), "+f"(d21), "+f"(d22), "+f"(d23),
"+f"(d24), "+f"(d25), "+f"(d26), "+f"(d27)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19], d[20], d[21], d[22], d[23],
d[24], d[25], d[26], d[27],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 56;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x64x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19, float& d20, float& d21, float& d22, float& d23,
float& d24, float& d25, float& d26, float& d27, float& d28, float& d29, float& d30, float& d31,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %34, 0;\n"
"wgmma.mma_async.sync.aligned.m64n64k32.f32.e4m3.e4m3"
"{%0, %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,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19), "+f"(d20), "+f"(d21), "+f"(d22), "+f"(d23),
"+f"(d24), "+f"(d25), "+f"(d26), "+f"(d27), "+f"(d28), "+f"(d29), "+f"(d30), "+f"(d31)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19], d[20], d[21], d[22], d[23],
d[24], d[25], d[26], d[27], d[28], d[29], d[30], d[31],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 64;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x72x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19, float& d20, float& d21, float& d22, float& d23,
float& d24, float& d25, float& d26, float& d27, float& d28, float& d29, float& d30, float& d31,
float& d32, float& d33, float& d34, float& d35,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %38, 0;\n"
"wgmma.mma_async.sync.aligned.m64n72k32.f32.e4m3.e4m3"
"{%0, %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,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19), "+f"(d20), "+f"(d21), "+f"(d22), "+f"(d23),
"+f"(d24), "+f"(d25), "+f"(d26), "+f"(d27), "+f"(d28), "+f"(d29), "+f"(d30), "+f"(d31),
"+f"(d32), "+f"(d33), "+f"(d34), "+f"(d35)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19], d[20], d[21], d[22], d[23],
d[24], d[25], d[26], d[27], d[28], d[29], d[30], d[31],
d[32], d[33], d[34], d[35],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 72;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x80x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19, float& d20, float& d21, float& d22, float& d23,
float& d24, float& d25, float& d26, float& d27, float& d28, float& d29, float& d30, float& d31,
float& d32, float& d33, float& d34, float& d35, float& d36, float& d37, float& d38, float& d39,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %42, 0;\n"
"wgmma.mma_async.sync.aligned.m64n80k32.f32.e4m3.e4m3"
"{%0, %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,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19), "+f"(d20), "+f"(d21), "+f"(d22), "+f"(d23),
"+f"(d24), "+f"(d25), "+f"(d26), "+f"(d27), "+f"(d28), "+f"(d29), "+f"(d30), "+f"(d31),
"+f"(d32), "+f"(d33), "+f"(d34), "+f"(d35), "+f"(d36), "+f"(d37), "+f"(d38), "+f"(d39)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19], d[20], d[21], d[22], d[23],
d[24], d[25], d[26], d[27], d[28], d[29], d[30], d[31],
d[32], d[33], d[34], d[35], d[36], d[37], d[38], d[39],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 80;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

struct SM90_64x88x32_F32E4M3E4M3_SS {
__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b,
float& d00, float& d01, float& d02, float& d03, float& d04, float& d05, float& d06, float& d07,
float& d08, float& d09, float& d10, float& d11, float& d12, float& d13, float& d14, float& d15,
float& d16, float& d17, float& d18, float& d19, float& d20, float& d21, float& d22, float& d23,
float& d24, float& d25, float& d26, float& d27, float& d28, float& d29, float& d30, float& d31,
float& d32, float& d33, float& d34, float& d35, float& d36, float& d37, float& d38, float& d39,
float& d40, float& d41, float& d42, float& d43,
bool scale_d) {
asm volatile("{\n"
".reg .pred p;\n"
"setp.ne.b32 p, %46, 0;\n"
"wgmma.mma_async.sync.aligned.m64n88k32.f32.e4m3.e4m3"
"{%0, %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,"
" p , 1, 1;\n"
"}\n"
: "+f"(d00), "+f"(d01), "+f"(d02), "+f"(d03), "+f"(d04), "+f"(d05), "+f"(d06), "+f"(d07),
"+f"(d08), "+f"(d09), "+f"(d10), "+f"(d11), "+f"(d12), "+f"(d13), "+f"(d14), "+f"(d15),
"+f"(d16), "+f"(d17), "+f"(d18), "+f"(d19), "+f"(d20), "+f"(d21), "+f"(d22), "+f"(d23),
"+f"(d24), "+f"(d25), "+f"(d26), "+f"(d27), "+f"(d28), "+f"(d29), "+f"(d30), "+f"(d31),
"+f"(d32), "+f"(d33), "+f"(d34), "+f"(d35), "+f"(d36), "+f"(d37), "+f"(d38), "+f"(d39),
"+f"(d40), "+f"(d41), "+f"(d42), "+f"(d43)
: "l"(desc_a), "l"(desc_b), "r"(int32_t(scale_d)));
}

__device__ static void wgmma(uint64_t const& desc_a, uint64_t const& desc_b, float* d, bool scale_d) {
wgmma(desc_a, desc_b,
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15],
d[16], d[17], d[18], d[19], d[20], d[21], d[22], d[23],
d[24], d[25], d[26], d[27], d[28], d[29], d[30], d[31],
d[32], d[33], d[34], d[35], d[36], d[37], d[38], d[39],
d[40], d[41], d[42], d[43],
scale_d);
}

static constexpr int M = 64;
static constexpr int N = 88;
static constexpr int K = 32;
static constexpr int kNumAccum = M * N / 128;
};

[xexz]

不懂就问
这个include <cuda.h>是不是说明还是基于cuda？
并没有绕开？

不久的将来也许可以：
include <按摩店gpu.h>
include <挤牙膏gpu.h>
include <华为npu.h>
include <摩尔线程gpu.h>
include <寒武纪npu.h>

当然，事情远非这么简单，硬件厂家要提供他们各自硬件指令的汇编器，并且支持这个‘虚拟机’的实现。

关键是，并不需要硬件厂家提供兼容cuda的高级语言编译器，cuda是和nvgpu硬件深度绑定的闭源软件。

[Mountainlion]

How many TFLOPs is H100 vs. H200?
The H100 NVL FP16 Tensor Core offers 1671 TFLOPs, while the FP8 Tensor Core offers 3341 TFLOPs. In comparison, the H200 FP16 Tensor Core offers 1979 TFLOPs while the FP8 Tensor Core offers 3958 TFLOPs, offering improved computational power for next-gen workloads.

我提醒xai deepseek fp8 gemm lib 今天open source之后

DeepSeek open-sourcing their FP8 GEMM library, DeepGEMM, on February 25, 2025, could absolutely nudge AI chip makers toward a new industry standard—but it’s not a done deal. With the code now public, boasting 1350+ TFLOPS on NVIDIA’s H800 and a lean, JIT-compiled design optimized for dense and MoE workloads, it’s a tantalizing blueprint. Here’s how it might play out and what’s standing in the way.
This move hands chip makers like AMD, Intel, or even Cerebras a ready-made weapon. DeepGEMM’s tricks—two-level accumulation (FP8 math on Tensor Cores, higher precision elsewhere), fine-grained scaling, and MoE-friendly layouts—aren’t NVIDIA-exclusive in theory. AMD’s MI300X, already running DeepSeek-R1 with FP8 support via ROCm, could adapt this to hit 1000+ TFLOPS, leveraging its 5.2 TB/s HBM3 bandwidth. Intel’s Gaudi 3, with 128 GB HBM3, could tweak its deep learning stack similarly. X posts today are buzzing—some devs call it “a gift to the underdogs,” hinting at a potential rally around this approach. If these players standardize on DeepGEMM’s principles—FP8-first, efficiency-driven, MoE-optimized—it could shift the game away from NVIDIA’s CUDA-centric dominance.
The push has legs because it’s practical and cheap. DeepSeek’s V3 trained for $5.6M, peanuts compared to Western models, and DeepGEMM’s 2.7x speed over “expert-tuned kernels” (likely cuBLAS) on certain matrix sizes screams value. Chip makers could market this as a cost-per-FLOP killer, especially for inference-heavy AI firms dodging NVIDIA’s $30K+ H100s. X chatter suggests AMD’s already in deep—SGLang ties with DeepSeek signal intent. If they or Intel bake this into a reference platform, it might coalesce into a standard, especially for mid-tier or emerging markets where NVIDIA’s premium pricing stings.
But it’s no slam dunk. NVIDIA’s ecosystem is a fortress—CUDA’s entrenched, and their H200/Blackwell chips are already countering with FP8 Transformer Engines. DeepGEMM was born on NVIDIA’s Hopper and PTX assembly; porting it to ROCm or OneAPI isn’t trivial—X posts today flag ROCm’s “duct-tape vibes” as a hurdle. Devs love NVIDIA’s polish, and frameworks like PyTorch aren’t jumping ship. Plus, NVIDIA’s spinning DeepSeek’s wins as a GPU demand booster—H20 orders spiked this week. Without a unified push—say, AMD, Intel, and AWS (Trainium) aligning on a DeepGEMM-derived spec—it risks being a niche tool, not a standard.
Will it happen? It’s closer than yesterday. Open-sourcing DeepGEMM today slashes the R&D barrier, and its 1350 TFLOPS on “crippled” H800s proves efficiency can trump raw power—a siren call for cost-conscious chip makers. If AMD or Intel ship a killer implementation and devs bite (some on X are already forking it), it could snowball. But NVIDIA’s 80%+ AI chip share and software moat mean DeepSeek needs allies—fast. I’d say it’s 40/60—possible, not probable, unless a coalition forms. What’s your gut? Can this spark a real shift, or is it just noise?

[huangchong]

这400行codes，等于是在围困华为的高墙上钻开了一个狗洞。
能不能成为INTEL 和AMD的机会，还很难说
但是至少华为可以用400行codes，和A100 竞争，说不定H100

写400行x86汇编 看看会不会在intel的高墙上钻个狗洞

[drifter]

C++嵌汇编有何神奇之处，Linux核里经常有C嵌汇编，只要稍微懂一些指令即可。
女大的cuda工程师不可能不懂不用。

不是这个技术有啥牛逼的 而是这个虚拟机牛逼 有潜力成为业界标准 各家支持这个标准 底层可以各家不同汇编实现

[drifter]

这是狗屁的汇编，这丫的是C的代码吧！

那些字符串就是汇编代码

[adylee]

这个说法太外行了
这点汇编，
是适应于这个特定的硬件才能写的，
目的是发挥出这个硬件的最大的功效，
而不是说， 这个写法就是标准了，大家都要往上边靠。

这么说吧，假设现在女大把最新的最牛的gpu给ds，
ds还可以(因为他们有这个技术力量)写出基于这个新gpu的新的汇编指令，
使得gemm运算在新gpu上还能加速多少倍。
而不是说，这点写出来的代码是神是标准，大家造显卡要往这个上边来适应。

是指当下、现在的硬件平台支持情况，

将来amd、intel、华为、摩尔线程、寒武纪。。。都可以提供自己的‘硬件平台’来支持这个‘虚拟机jit’（就象把java虚拟机，从x86平台移植到arm平台），只是现在刚开源，他们还没来得及（有消息说彻底抛开gpu架构的专用硬件asic，今年上半年就会出现，gpu并非对张量运算特别优化的计算结构，这个效率提升就更大了）。

另外，即使你帝行政/立法不让amd,intel支持，

这不耽误什么事，没人和钱过不去。

[huangchong]

不懂就问
这个include <cuda.h>是不是说明还是基于cuda？
并没有绕开？

前面有include cuda.h的原因是这些文件本身还是cuda c++程序，是在cuda c++里插了这些汇编代码来直接控制细节，跟给普通c++里插汇编差不多的意思。

程序里在asm后面的是nvidia的ptx。ptx基本上算是nvidia gpu的汇编。cuda本身是个c++库， 编译的初步结果就是这些ptx。

https://docs.nvidia.com/cuda/parallel-thread-execution/

PTX provides a stable programming model and instruction set for general purpose parallel programming. It is designed to be efficient on NVIDIA GPUs supporting the computation features defined by the NVIDIA Tesla architecture. High level language compilers for languages such as CUDA and C/C++ generate PTX instructions, which are optimized for and translated to native target-architecture instructions.

可以看到程序里面有些东西前面有sm_90，有些地方也有 if (__cuda_arch__ >=900), 它们的意思是，这些代码依赖nvidia compute capability 9.0（以及以上）的特性。这个计算能力是由处理器硬件的内部设计决定的，比如说特殊运算单元，寄存器文件大小，存取规则，缓存大小和控制机制等等。

在这里需要sm_90的一部分原因应该是对8位浮点运算的硬件支持是sm_90 (Hopper transformer engine)才有的。不过对gpu程序的优化其实主要都是对数据存取过程的控制，而这是跟处理器里面的寄存器和缓存工作方式密切相关的，要是不利用这些特性，写c++就够了，犯不上写汇编。

一般的情况下，如果用户写了cuda c++，这种针对不同代的gpu的优化是nvidia的cuda编译器nvcc给你做的，编译的时候告诉nvcc你这个程序的打算支持那几代的计算能力，他就给你分别生成对那几代gpu优化的代码。


有能力写ptx本身当然是好事，这毫无疑问。但是关于这是不是绕过了cuda/nvidia，不妨问一句，直接对具体处理器写汇编，软件跟硬件的耦合（coupling）是更强了还是更弱了？如果跟硬件耦合更强，怎么把人家硬件公司绕过去的？

[huangchong]

不是这个技术有啥牛逼的 而是这个虚拟机牛逼 有潜力成为业界标准 各家支持这个标准 底层可以各家不同汇编实现

你看了那个repo么？给我指指，这个能当行业标准的虚拟机在哪里？

[xexz]

你看了那个repo么？给我指指，这个能当行业标准的虚拟机在哪里？

https://github.com/deepseek-ai/DeepGEMM ... /deep_gemm

狗屁不懂就别瞎鸡巴叫唤了。

[huangchong]

https://github.com/deepseek-ai/DeepGEMM ... /deep_gemm

我已经看了。除了那些cuda程序，就是一共8个100行的python。现在虚拟机这么好写了？

[huangchong]

https://github.com/deepseek-ai/DeepGEMM ... /deep_gemm

狗屁不懂就别瞎鸡巴叫唤了。

看样子你自己是看懂了

[xexz]

我已经看了。除了那些cuda程序，就是一共8个100行的python。现在虚拟机这么好写了？

你丫看了也是睁眼瞎。

[huangchong]

你丫看了也是睁眼瞎。

你看看，吹了一早晨牛逼，破了，立刻本性复萌

[Tesla]

今天NVDA股票大涨，梁文峰失算了

[drifter]

你看了那个repo么？给我指指，这个能当行业标准的虚拟机在哪里？

虚拟机夸张了 我觉得还是更接近当年MMX扩展之类的

[magagop]

他是一个JIT虚拟机，目前，底层是基于nvGPU汇编代码，这部分也公开了，其他厂家只要实现这些汇编就可以用这个JIT虚拟机。

这个对其他硬件厂家没难度，GPU不是cpu，指令集简单得多。甚至多核的有单指令多数据指令的CPU也能表现的很强劲（当然，cpu核心少，不是一个数量级）。

錯，GPU指令雖然簡單，但沒有正式授權美國沒人敢做，參考zluda項目的下場，被紅藍廠無情拋棄。

[magagop]

展现了一个方向，加一层简单的适配，绕开所有特定硬件限制。

如果哪個美國芯片廠敢接，就跟zluda一個性質，不會被nvda法務部放過，很難有好下場。但開源後甲方或者某些黑名單上的，尤其是中國公司偷偷用用可以。