Message 132732 - Python tracker

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In-reply-to
Author	mark.wiebe
Recipients	Eli.Stevens, mark.dickinson, mark.wiebe
Date	2011年04月01日.07:58:08
SpamBayes Score	1.0266456e-06
Marked as misclassified	No
Message-id	<1301644689.23.0.537464553473.issue11734@psf.upfronthosting.co.za>

Content
Taking a look at the patch, I see you're using the single -> half conversion routine from NumPy. This has the double rounding problem when converting double -> float -> half, so it would be better to use the double -> half routine. I implemented it with 64-bit unsigned ints, so if there are platforms not supporting 64-bit ints, something else such as using the 32-bit routine will have to be done there.

Content

Taking a look at the patch, I see you're using the single -> half conversion routine from NumPy. This has the double rounding problem when converting double -> float -> half, so it would be better to use the double -> half routine. I implemented it with 64-bit unsigned ints, so if there are platforms not supporting 64-bit ints, something else such as using the 32-bit routine will have to be done there.

History
Date	User	Action	Args
2011年04月01日 07:58:09	mark.wiebe	set	recipients: + mark.wiebe, mark.dickinson, Eli.Stevens
2011年04月01日 07:58:09	mark.wiebe	set	messageid: <1301644689.23.0.537464553473.issue11734@psf.upfronthosting.co.za>
2011年04月01日 07:58:08	mark.wiebe	link	issue11734 messages
2011年04月01日 07:58:08	mark.wiebe	create

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