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MXFP4 Macrotile Schedules #957

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1eecba5
Modified benchmark script to use latest mxfp4 preshuffle b + async sc…
suryajasper Feb 23, 2026
ece4a53
Modified benchmark script
suryajasper Feb 25, 2026
cb11e89
Remove a-scale preshuffling so macrotiles pass
suryajasper Feb 27, 2026
92adef4
Disable a-scale mapping
suryajasper Feb 27, 2026
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95 changes: 69 additions & 26 deletions examples/python/7.1_schedule.py
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@

import torch

from wave_lang.kernel.wave.scheduling.schedule_enums import SchedulingType
from wave_lang.kernel.wave.compile import wave_compile
from wave_lang.kernel.wave.utils.run_utils import set_default_run_config
from wave_lang.kernel.wave.templates import (
Expand All @@ -31,7 +32,10 @@
b_preshuffle,
e8m0_shuffle,
)
from wave_lang.kernel.lang.global_symbols import GLOBAL_ADDRESS_SPACE
from wave_lang.kernel.lang.global_symbols import (
GLOBAL_ADDRESS_SPACE,
SHARED_ADDRESS_SPACE,
)
from utils import parse_args, list_tests, run_test


Expand Down Expand Up @@ -64,7 +68,7 @@ def _run_mxfp_gemm_preshuffle_b(gemm, shape):
x_scales_ps, w_scales_ps = x_scales_ps.cuda(), w_scales_ps.cuda()
out = torch.zeros(x.shape[0], w_t_ps.shape[0], dtype=torch.float32).cuda()

gemm(x, x_scales_ps, w_t_ps, w_scales_ps, out)
gemm(x, x_scales, w_t_ps, w_scales_ps, out)
torch.testing.assert_close(
torch_out, out.cpu(), check_dtype=False, check_device=False
)
Expand All @@ -74,17 +78,26 @@ def test_dbuf_4wave_mxfp_gemm(
is_debug=False, shape=(1024, 1024, 8192), block=(256, 256, 256)
):
"""Double-buffered MXFP4 GEMM, 4 waves, no stagger."""
gemm, options = get_tagged_mxfp4_gemm(shape, block, wave_shape=(2, 2))
schedule = get_mxfp4_dbuf_schedule(use_stagger=False)

options.print_ir_after = "all" if is_debug else []
options.print_mlir_file = "gemm_mxfp4_dbuf_4wave.mlir"
options.print_mlir = True
options = set_default_run_config(options)
gemm = wave_compile(options, gemm, schedule)

_run_mxfp_gemm(gemm, shape)
print("MXFP GEMM double-buffer 4-wave test passed!")
for block in [
(256, 256, 256),
(128, 256, 256),
(128, 128, 256),
]:
gemm, options = get_tagged_mxfp4_gemm(
shape, block, wave_shape=(2, 2), dynamic_dims=True
)
# schedule = get_mxfp4_dbuf_schedule(use_stagger=False)

options.print_ir_after = "all" if is_debug else []
options.print_mlir_file = "gemm_mxfp4_dbuf_4wave.mlir"
options.print_mlir = True
options.schedule = SchedulingType.NONE
options.dump_intermediates = f"build/dynamic/wave_gemm_mxfp4_dbuf_4wave_MT{block[0]}x{block[1]}x{block[2]}"
options = set_default_run_config(options)
gemm = wave_compile(options, gemm)

_run_mxfp_gemm(gemm, shape)
print(f"Dynamic MXFP GEMM double-buffer 4-wave test passed for block {block}!")


def test_dbuf_8wave_pingpong_mxfp_gemm(
Expand Down Expand Up @@ -167,19 +180,49 @@ def test_dbuf_4wave_mxfp_preshuffle_b_gemm(
is_debug=False, shape=(1024, 1024, 8192), block=(256, 256, 256)
):
"""Asymmetric MXFP4 GEMM with preshuffled B data and B scales."""
gemm, options = get_tagged_mxfp4_gemm_preshuffle_b(shape, block, wave_shape=(1, 4))
options.minimize_shared_allocs = True
options.linearize_shared_access = True
options.use_buffer_ops = True
options.dump_intermediates = "build/intermediates"
schedule = get_mxfp4_asymmetric_schedule()

options.print_ir_after = "all" if is_debug else []
options = set_default_run_config(options)
gemm = wave_compile(options, gemm, schedule)

_run_mxfp_gemm_preshuffle_b(gemm, shape)
print("MXFP GEMM preshuffle-B 4-wave test passed!")
macrotiles = [
(64, 192, 256),
(256, 256, 128),
]
for block in macrotiles:
gemm, options = get_tagged_mxfp4_gemm_preshuffle_b(
shape,
block,
wave_shape=(1, 4),
dynamic_dims=False,
a_address_space=SHARED_ADDRESS_SPACE,
)

block_m, block_n, block_k = block

options.schedule = SchedulingType.MANUAL
options.minimize_shared_allocs = True
options.linearize_shared_access = True
options.use_buffer_ops = True
# options.mlir_print_ir_after_all = True
options.dump_intermediates = f"build/b_preshuffle_dynamic/wave_gemm_mxfp4_preshuffle_MT{block_m}x{block_n}x{block_k}"
schedule = get_mxfp4_asymmetric_schedule()

options.print_ir_after = "all" if is_debug else []
options = set_default_run_config(options)
gemm = wave_compile(options, gemm, schedule)

_run_mxfp_gemm_preshuffle_b(gemm, shape)
print(f"MXFP GEMM preshuffle-B Dynamic 4-wave test passed for shape {shape}!")

# gemm, options = get_tagged_mxfp4_gemm_preshuffle_b(shape, block, wave_shape=(1, 4))
# options.minimize_shared_allocs = True
# options.linearize_shared_access = True
# options.use_buffer_ops = True
# options.dump_intermediates = "build/intermediates"
# schedule = get_mxfp4_asymmetric_schedule()

# options.print_ir_after = "all" if is_debug else []
# options = set_default_run_config(options)
# gemm = wave_compile(options, gemm, schedule)

# _run_mxfp_gemm_preshuffle_b(gemm, shape)
# print("MXFP GEMM preshuffle-B 4-wave test passed!")


if __name__ == "__main__":
Expand Down
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