- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
I am using ippsFFTGetSize_C_32fc() to size for a FFT with an order of 19. The pBufferSize calculated is 262,208. However, if I size a FFT with an order of 18, the pBufferSize is 2,097,216. I expect the larger FFT order to calculate a larger pBufferSize. Is this assumption incorrect?
-Treph
Link Copied
3 Replies
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Treph, what version of IPP did you try? Checking this case with the latest 2018 u1 version of IPP, I see the follows results
ffttest.exe
major = 2018
minor = 0
majorBuild = 1
build = 56998
targetCpu = y8
Name = ippSP SSE4.2 (y8)
Version = 2018.0.1 (r56998)
BuildDate = Oct 10 2017
..................... FFTOrder == 18 ................
..................... FFTOrder == 18, sizeBuffer == 131136 ................
testftt.exe
major = 2018
minor = 0
majorBuild = 1
build = 56998
targetCpu = y8
Name = ippSP SSE4.2 (y8)
Version = 2018.0.1 (r56998)
BuildDate = Oct 10 2017
..................... FFTOrder == 19 ................
..................... FFTOrder == 19, sizeBuffer == 262208 ................
--Gennady
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi Gennady,
Thanks for your reply. I checked the ippversion.h file, and the version string is "9.0.3".
-Treph
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Treph, could you check the new release of IPP? and see if it still an issue for you?
thanks,
Chao

Reply
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page