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[Unity] Add instruments to relay translator #15601

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Aug 27, 2023
Merged

[Unity] Add instruments to relay translator #15601

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28d0cc2
[Unity] Add instruments to relay translator
quic-sanirudh Aug 21, 2023
685cc76
Fix test case
quic-sanirudh Aug 22, 2023
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9 changes: 8 additions & 1 deletion python/tvm/relax/testing/relay_translator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -18,11 +18,12 @@
# pylint: disable=too-many-nested-blocks, unused-variable
"""Relay to Relax translator."""

from typing import Any, Dict, List, Optional
from typing import Any, Dict, List, Optional, Sequence

import tvm
from tvm import relax, relay
from tvm.ir.module import IRModule
from tvm.ir.instrument import PassInstrument
from tvm.relax.testing import nn
from tvm.relay.backend.te_compiler import select_implementation
from tvm.runtime import NDArray
Expand All @@ -37,6 +38,7 @@ def from_relay(
*,
opt_level: int = 3,
pass_config: Optional[Dict[str, Any]] = None,
instruments: Optional[Sequence[PassInstrument]] = None,
disabled_pass: Optional[List[str]] = None,
translate_op_with_tir: Optional[Dict[str, tvm.tir.PrimFunc]] = None,
append_op_attrs: bool = False,
Expand All @@ -60,6 +62,10 @@ def from_relay(
pass_config: Optional[Dict[str, Any]]
Pass configuration.

instruments : Optional[Sequence[PassInstrument]]
The list of pass instrument implementations to be passed onto relay
while calling relay passes

disabled_pass: Optional[List[str]]
Passes to disable.

Expand Down Expand Up @@ -255,6 +261,7 @@ def visit_func(node):
opt_level=opt_level,
config=pass_config,
disabled_pass=disabled_pass,
instruments=instruments,
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I like it, though I'm wondering if we should have it forward the instrumentation of the existing PassContext, rather than explicitly accept it as an argument. That way, debug instrumentation set by a much higher scope would also be preserved, without requiring an update to the immediately-calling scope.

instruments = tvm.transform.PassCurrent().instruments

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Thanks for your review @Lunderberg.

I actually did it that way initially, but since the other arguments to PassContext such as opt_level and pass_config were taken as arguments to the relay translator, I modified it take instruments as an argument as well.

I can change it back to be forwarded from current PassContext as you've suggested, either way is fine with me, but in that case, should we also remove opt_level and pass_config from being arguments and forward them from current context as well? Since that would be a breaking change, I'm a bit hesitant to do that.

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Hmm, good point. Since the other arguments are currently specified explicitly, probably better to keep it that way for consistency.

In the long-term, I think that entering a PassContext should probably distinguish between options that override the previous (opt_level), options that append to the previous (instruments, disabled_passes).

):
mod = tvm.IRModule.from_expr(func)
mod = seq(mod)
Expand Down
26 changes: 26 additions & 0 deletions tests/python/relax/test_relay_translator.py
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Expand Up @@ -312,5 +312,31 @@ def test_append_op_attrs():
assert "op_attrs" not in relax_mod_wo_attrs["concatenate"].attrs


def test_instruments_support():
x = relay.var("x", shape=(10, 16))
y = relay.var("y", shape=(10, 16))
out = relay.add(x, y)
mod = tvm.IRModule.from_expr(out)

@tvm.instrument.pass_instrument
class SampleRunBeforeAfterInstrument:
def __init__(self):
self.events = []

def run_before_pass(self, mod, info):
self.events.append("run before " + info.name)

def run_after_pass(self, mod, info):
self.events.append("run after " + info.name)

my_test = SampleRunBeforeAfterInstrument()
relax_mod_with_attrs = relay_translator.from_relay(
mod["main"], target="llvm", instruments=[my_test]
)

assert "run after " in "".join(my_test.events)
assert "run before " in "".join(my_test.events)


if __name__ == "__main__":
pytest.main([__file__])
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