Skip to content

Revert "fix(jit): GEMM kernels produce NaN under concurrency — missing GDC flags cause PDL synchronization barriers to compile as no-ops" #2737

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
bkryu merged 3 commits into from
Mar 12, 2026
+1 −15
Merged

Revert "fix(jit): GEMM kernels produce NaN under concurrency — missing GDC flags cause PDL synchronization barriers to compile as no-ops" #2737

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
a5e3c16
Revert "fix(jit): GEMM kernels produce NaN under concurrency — missin…
aleozlx Mar 10, 2026
95992b1
fix
yzh119 Mar 10, 2026
b7cca53
Revert "fix"
aleozlx Mar 10, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
16 changes: 1 addition & 15 deletions flashinfer/jit/gemm/core.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -91,8 +91,6 @@ def gen_gemm_sm100_module_cutlass_fp4() -> JitSpec:
+ [
"-DENABLE_BF16",
"-DENABLE_FP4",
"-DCUTLASS_ENABLE_GDC_FOR_SM100=1",
"-DCUTLASS_ENABLE_GDC_FOR_SM90=1",
],
extra_cflags=[
"-DFAST_BUILD",
Expand Down Expand Up @@ -160,8 +158,6 @@ def gen_gemm_sm103_module_cutlass_fp4() -> JitSpec:
+ [
"-DENABLE_BF16",
"-DENABLE_FP4",
"-DCUTLASS_ENABLE_GDC_FOR_SM100=1",
"-DCUTLASS_ENABLE_GDC_FOR_SM90=1",
],
extra_cflags=[
"-DFAST_BUILD",
Expand Down Expand Up @@ -210,8 +206,6 @@ def gen_gemm_sm120_module_cutlass_fp4() -> JitSpec:
+ [
"-DENABLE_BF16",
"-DENABLE_FP4",
"-DCUTLASS_ENABLE_GDC_FOR_SM100=1",
"-DCUTLASS_ENABLE_GDC_FOR_SM90=1",
],
extra_cflags=[
"-DFAST_BUILD",
Expand Down Expand Up @@ -262,8 +256,6 @@ def gen_gemm_sm100_module_cutlass_fp8() -> JitSpec:
extra_cuda_cflags=nvcc_flags
+ [
"-DENABLE_BF16",
"-DCUTLASS_ENABLE_GDC_FOR_SM100=1",
"-DCUTLASS_ENABLE_GDC_FOR_SM90=1",
],
extra_cflags=[
"-DFAST_BUILD",
Expand Down Expand Up @@ -357,8 +349,6 @@ def gen_gemm_sm100_module_cutlass_mxfp8() -> JitSpec:
extra_cuda_cflags=nvcc_flags
+ [
"-DENABLE_BF16",
"-DCUTLASS_ENABLE_GDC_FOR_SM100=1",
"-DCUTLASS_ENABLE_GDC_FOR_SM90=1",
],
extra_cflags=[
"-DFAST_BUILD",
Expand Down Expand Up @@ -526,11 +516,7 @@ def gen_gemm_sm120_module() -> JitSpec:
return gen_jit_spec(
"gemm_sm120",
source_paths,
extra_cuda_cflags=nvcc_flags
+ [
"-DCUTLASS_ENABLE_GDC_FOR_SM100=1",
"-DCUTLASS_ENABLE_GDC_FOR_SM90=1",
],
extra_cuda_cflags=nvcc_flags,
)


Expand Down
Loading