Hi Ryan
Can you say a few words about how the in-place corner turner works? I'd
be fascinated to hear.
Thanks
Gerry
On 3/1/2013 11:28 AM, David MacMahon wrote:
Thanks, Ryan,
The problem was actually in the integration buffers. We were using QDR vector
accumulators and the vector was too
hi gerry,
you might be interested in aaron's paper about in place corner turners:
https://casper.berkeley.edu/wiki/Papers
Parsons, A., The Symmetric Group in Data Permutation, with Applications to
a High-Bandwidth Streaming FFT
Hi All,
Is someone able to confirm that the size of the QDR chips on ROACH 1 boards
depends solely on the board version? If this is indeed the case, does
anyone know the QDR specs for the different board iterations?
Cheers,
Jack
Hi, Jack,
We noticed that one of our designs gave bogus results when run on a ROACH 1
board with a serial number in the range 02, but valid results when run on a
ROACH 1 board with a serial number in the ranges 03 or 04.
After much head scratching, we opened up one 02, one
Hey David,
I know it's probably too late, but I figured out how to do a QDR-corner
turn without ping-ponging (thus, doubling the effective size of the
QDR). Give me a shout if you need this in the future!
On 03/01/2013 10:23 AM, David MacMahon wrote:
Hi, Jack,
We noticed that one of our
hi ryan,
can you check this into one of the GIT repositories?
thanks,
dan
On Fri, Mar 1, 2013 at 10:37 AM, Ryan Monroe ryan.m.mon...@gmail.comwrote:
Hey David,
I know it's probably too late, but I figured out how to do a QDR-corner
turn without ping-ponging (thus, doubling the effective
It's not that complete. I could write a memo about it and throw around
some matlab code. I implemented it for a demo several months ago but it
was never tidy. Whoever actually needs it would have half of their work
done though. Basically, you just have to permute the bits of the address
Hi David,
That was exactly the information i was looking for -- thanks!
Jack
On 1 March 2013 18:23, David MacMahon dav...@astro.berkeley.edu wrote:
Hi, Jack,
We noticed that one of our designs gave bogus results when run on a ROACH
1 board with a serial number in the range 02, but
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