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From Dimitris Lekkas <dlekk...@gmail.com>
Subject Re: FPGA support for Apache Arrow
Date Mon, 01 Apr 2019 07:25:26 GMT
Hey Antoine,

Regarding the C++ side, do you consider variable alignment for buffers
a valuable addition? Would you be interested for such a PR? Finally, I
want to ask if I should be discussing such issues on Jira instead of
dev mailing list.

Thanks for the replies, despite you being busy with the release
of 0.13.0.

Dimitris

On Mon, Apr 1, 2019 at 12:15 AM Antoine Pitrou <antoine@python.org> wrote:

>
> Hi Dimitris,
>
> Le 31/03/2019 à 23:09, Dimitris Lekkas a écrit :
> >
> > Correct me if I'm wrong, but it doesn't seem to me that allocating size
> of
> > 4KB
> > multiple would equivalently mean that the starting address of data is
> also
> > a
> > multiple of 4KB.
>
> You're right.
>
> > For example, in the Java implementation when an ArrowBuf is allocated we
> > later slice it to allocate both a data buffer and validity buffer.
>
> That's an interesting approach.  The C++ side allocates separate memory
> areas for validity and raw data.
>
> > Would it help if I
> > opened a PR with our workaround for page-alignment in Java?
>
> The Java maintainers would have to answer.
>
> Regards
>
> Antoine.
>

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