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Commit c3bcf18e authored by Michael Carilli's avatar Michael Carilli
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More helpful message for unexpected opt_level

parent a9f5f711
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apex/amp/frontend.py
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...@@ -320,7 +320,8 @@ def initialize( ...@@ -320,7 +320,8 @@ def initialize(
if opt_level not in opt_levels: if opt_level not in opt_levels:
raise RuntimeError( raise RuntimeError(
"Unexpected optimization level {}. ".format(opt_level) + "Unexpected optimization level {}. ".format(opt_level) +
"Options are 'O0', 'O1', 'O2', 'O3'.") "Options are 'O0', 'O1', 'O2', 'O3'. Note that in `O0`, `O1`, etc., the prefix O is the letter O, " +
"not the number zero.")
else: else:
_amp_state.opt_properties = opt_levels[opt_level](_amp_state.opt_properties) _amp_state.opt_properties = opt_levels[opt_level](_amp_state.opt_properties)
maybe_print("Selected optimization level {}".format(opt_levels[opt_level].brief), True) maybe_print("Selected optimization level {}".format(opt_levels[opt_level].brief), True)
......
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