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Executor need reasonable default value #5681

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Executor need reasonable default value #5681

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33e6b8c
first commit
Nov 15, 2017
22e0ea8
add pybind get_cuda_device_count
Nov 15, 2017
33ee63b
platform GetCUDADeviceCount has alrady been added to pybind. Remove t…
Nov 15, 2017
e4ff0da
fix typo
Nov 16, 2017
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12 changes: 11 additions & 1 deletion python/paddle/v2/fluid/executor.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,17 @@


class Executor(object):
def __init__(self, places):
def __init__(self, places=None):
if places is None:
if core.is_compile_gpu():
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I think we need to detect at runtime whether a GPU is present. It's very likely a compiled GPU version runs on a CPU only machine.

if core.get_cuda_device_count() > 0:
places = [core.GPUPlace()]
else:
# TODO(tonyyang-svail): print warning here
places = [core.CPUPlace()]
else:
places = [core.CPUPlace()]

if not isinstance(places, list) and not isinstance(places, tuple):
places = [places]

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