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[µTVM] Print .elf statistics for a model runtime built with Zephyr #7449

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merged 5 commits into from
Feb 15, 2021
Merged

[µTVM] Print .elf statistics for a model runtime built with Zephyr #7449

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555e95b
[µTVM] Print .elf statistics for a model runtime built with Zephyr
gromero Feb 11, 2021
1c8ad69
v2: Fixes accordingly to Andrew review
gromero Feb 12, 2021
387a9eb
Fix build
gromero Feb 12, 2021
39aece9
Fix build
gromero Feb 12, 2021
6ebd7fe
Retrigger CI
gromero Feb 12, 2021
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25 changes: 23 additions & 2 deletions python/tvm/micro/contrib/zephyr.py
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Original file line number Diff line number Diff line change
Expand Up @@ -55,7 +55,7 @@ def run(self, cmd, **kw):
for k, v in self.default_overrides.items():
env[k] = v

return subprocess.check_output(cmd, env=env, **kw)
return subprocess.check_output(cmd, env=env, **kw, universal_newlines=True)


class ProjectNotFoundError(Exception):
Expand Down Expand Up @@ -204,6 +204,25 @@ def library(self, output, sources, options=None):
)
return tvm.micro.MicroLibrary(build_dir, [f"lib{project_name}.a"])

def _print_make_statistics(self, output):
output = output.splitlines()
lines = iter(output)
for line in lines:
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could you catch StopIteration somewhere so that in the event the output looks weird, this doesn't break the compilation flow?

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done

if line.startswith("Memory region"):
# print statistics header
_LOG.info(line)
_LOG.info("--------------------- ---------- ------------ ---------")
line = next(lines)
# while there is a region print it
try:
while ":" in line:
_LOG.info(line)
line = next(lines)
else:
break
except StopIteration:
pass

def binary(self, output, objects, options=None, link_main=True, main_options=None):
assert link_main, "Must pass link_main=True"
assert self._project_dir is not None, "Must supply project_dir= to build binaries"
Expand All @@ -224,7 +243,9 @@ def binary(self, output, objects, options=None, link_main=True, main_options=Non
cmake_args.append(f'-DTVM_LIBS={";".join(copied_libs)}')
self._subprocess_env.run(cmake_args, cwd=output)

self._subprocess_env.run(["make"], cwd=output)
make_output = self._subprocess_env.run(["make"], cwd=output)

self._print_make_statistics(make_output)

return tvm.micro.MicroBinary(
output,
Expand Down
6 changes: 6 additions & 0 deletions tutorials/micro/micro_tflite.py
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Original file line number Diff line number Diff line change
Expand Up @@ -122,6 +122,8 @@

import os
import numpy as np
import logging

import tvm
import tvm.micro as micro
from tvm.contrib.download import download_testdata
Expand Down Expand Up @@ -227,6 +229,10 @@
# )
#
# opts = tvm.micro.default_options(f"{project_dir}/crt")
#
# enable printing memory usage statistics of the runtime image
# generated by Zephyr compiler for the physical hardware
# logging.basicConfig(level="INFO")

workspace = tvm.micro.Workspace()
micro_binary = tvm.micro.build_static_runtime(
Expand Down