Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3
Bob/Eric, I did a bit of comparison between different versions I had installed and found that on my hardware, preview 8 runs with about the same CPU consumption as preview 1. Preview 7 was a significant cpu hog on my config for some reason. fft_wisdom was run on all versions and I imported the preview 7 DB into preview 8 and all settings were the same. Anyway, it looks like on my hardware the directx change it had no negative affect and so far I'm quite happy with it. Thanks for all the hard work guys! 73, Kurt KC9FOL CPU v 1.4.4 : ~18% CPU v 1.4.5 preview 1: 7 to 10% CPU v 1.4.5 preview 7: 35.5 to 37.5% CPU v 1.4.5 preview 8: 6.3 to 10.9% XP pro Pentium 4 2.4 Ghz 1GB RAM directX 9 NVIDIA GeForce4 MX 4000 video card screen resolution 1280x1024 delta 44 Robert McGwier wrote: Let me say this once since it has not been made explicit. Whether or not DirectX helps you or hurts you is COMPLETELY dependent on the quality of your video card and its driver. If you driver and video card do lots and lots of texturing and rendering, etc. in hardware, it will give you a huge cut down in CPU. If you own a POS video card, to match the POS mobo for the sound card, expect no help from this setting. Please continue to use GDI. (POS == piece of slime, otherwise substitute your favorite) On my laptop, the CPU % moves up and down from 1% to 10% with much more variance than before. However, previous to our use of FFTW3 and DirectX, it was a steady 40%. This latest version is an overall MASSIVE win. The agc is now the FULL two track specification that Phil proposed. The implementation has undergone many iterations and the fast track came together in the last two weeks while sitting in my hotel room in Marburg, Germany. Frank and I attended an AMSAT meeting there where it became absolutely clear that SDR is the future of amateur radio satellites. Phase 3E will use an SDX (software defined transponder) and AMSAT's current Eagle proposal is a software defined satellite. Now if we could only get Software defined launches! Back to the AGC, Phil lives in the land down under. This means that he and I are inverted! Phil suggests setting the fast attack threshold to twice that of slow track to target the same signal. Phil used AGC voltage (the more negative, the more AGC limiting). I use gain. Furthermore, my gain is voltage multiplier. His AGC was dB and inverse gain. The results were like those of the JPL engineers who spoke metric on one side and feet/yards on the other and sent the Mars mission into the dirt. This is entirely my fault and Phil's spec has been fine since day one. I really like the new sound this gives. Thanks so much to Jeff for his constant probing of the agc and his EXTREMELY useful software analysis and critical remarks. Also to Dale for his continued testing and remarks and measurements. Four days ago they gave me their latest comments and measurements on overshoot and I hope we successfully captured the necessary changes in release 8. If not, we are still learning. What I can say is this is a sweet sounding agc now and we should all send our thanks to Phil, VK6APH. Eric is busting his rear end on getting DirectX to work. Like all things, Microsoft works extremely hard to obfuscate as much as possible. I am becoming more and more convinced that you get the secret keys to the kingdom of their documentation, and probably code examples, only as a result of attending this huge thousands of dollars developer courses. Monopolies stink. There is absolutely NOTHING worse than the documentation for WDM-KS. DirectX is slightly improved with the managed directX is an abomination. It silently wrecked the floating point coprocessor and we were pointing the finger at FFTW3 until Eric found a page or two full of complaints about the idiotic silent behavior and then implemented the (behind the hidden handshake and thousands of dollars of training) hidden flag that stops this behavior. Bob N4HY KD5NWA wrote: I just tried Beta 8 on my SR-40 and turned on Direct X, maybe I'm missing something here but my panadapter works just fine, everything is working fine. After turning the panadapter on I doubled checked and the setting is still on Direct X, I don't see a difference when turning it on or off as far as CPU usage. Cecil Bayona KD5NWA www.qrpradio.com I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ... ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3
Bob, Maybe I don't understand your POS statement exactly. I am seeing what everyone else is seeing with respect to DirectX and I am sure that Eric is busting his chops on this. Eric always does! By activating DirectX on my system, I see the CPU utilization rise from 3% or 4% to anywhere between 40% and 50% with the panadapter display. I have never thought of my 2.8 gig Pentium 4 and Intel 865 mobo (including onboard Intel video) as a POS. Does your post mean that I could get better performance from some other add in video card and if so, what would your recommendation be? BTW Preview 8 is a darn nice Christmas present. Thanks Eric! --Larry W8ER - Original Message - From: Robert McGwier [EMAIL PROTECTED] To: KD5NWA [EMAIL PROTECTED] Cc: FlexRadio@flex-radio.biz Sent: Saturday, December 17, 2005 8:12 AM Subject: Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3 Let me say this once since it has not been made explicit. Whether or not DirectX helps you or hurts you is COMPLETELY dependent on the quality of your video card and its driver. If you driver and video card do lots and lots of texturing and rendering, etc. in hardware, it will give you a huge cut down in CPU. If you own a POS video card, to match the POS mobo for the sound card, expect no help from this setting. Please continue to use GDI. (POS == piece of slime, otherwise substitute your favorite) On my laptop, the CPU % moves up and down from 1% to 10% with much more variance than before. However, previous to our use of FFTW3 and DirectX, it was a steady 40%. This latest version is an overall MASSIVE win. The agc is now the FULL two track specification that Phil proposed. The implementation has undergone many iterations and the fast track came together in the last two weeks while sitting in my hotel room in Marburg, Germany. Frank and I attended an AMSAT meeting there where it became absolutely clear that SDR is the future of amateur radio satellites. Phase 3E will use an SDX (software defined transponder) and AMSAT's current Eagle proposal is a software defined satellite. Now if we could only get Software defined launches! Back to the AGC, Phil lives in the land down under. This means that he and I are inverted! Phil suggests setting the fast attack threshold to twice that of slow track to target the same signal. Phil used AGC voltage (the more negative, the more AGC limiting). I use gain. Furthermore, my gain is voltage multiplier. His AGC was dB and inverse gain. The results were like those of the JPL engineers who spoke metric on one side and feet/yards on the other and sent the Mars mission into the dirt. This is entirely my fault and Phil's spec has been fine since day one. I really like the new sound this gives. Thanks so much to Jeff for his constant probing of the agc and his EXTREMELY useful software analysis and critical remarks. Also to Dale for his continued testing and remarks and measurements. Four days ago they gave me their latest comments and measurements on overshoot and I hope we successfully captured the necessary changes in release 8. If not, we are still learning. What I can say is this is a sweet sounding agc now and we should all send our thanks to Phil, VK6APH. Eric is busting his rear end on getting DirectX to work. Like all things, Microsoft works extremely hard to obfuscate as much as possible. I am becoming more and more convinced that you get the secret keys to the kingdom of their documentation, and probably code examples, only as a result of attending this huge thousands of dollars developer courses. Monopolies stink. There is absolutely NOTHING worse than the documentation for WDM-KS. DirectX is slightly improved with the managed directX is an abomination. It silently wrecked the floating point coprocessor and we were pointing the finger at FFTW3 until Eric found a page or two full of complaints about the idiotic silent behavior and then implemented the (behind the hidden handshake and thousands of dollars of training) hidden flag that stops this behavior. Bob N4HY KD5NWA wrote: I just tried Beta 8 on my SR-40 and turned on Direct X, maybe I'm missing something here but my panadapter works just fine, everything is working fine. After turning the panadapter on I doubled checked and the setting is still on Direct X, I don't see a difference when turning it on or off as far as CPU usage. Cecil Bayona KD5NWA www.qrpradio.com I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ... ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz -- Laziness is the number one inspiration for ingenuity. Guilty as charged! ___ FlexRadio
Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3
Larry: As I said, DirectX implementations depending heavily on the hardware and the drivers. When I engage directx with my ATI Radeon 9800, I get an immediate factor over 2 drop in CPU ticks! When I use it on my Nvidia card at work, I get a larger drop. When I use it with the ATI Radeon Mobo card on my laptop, the CPU drops on average by a factor of two. Coupled with the use of SSE2 in the FFTW arithmetic, this winds up being a factor of FOUR on my laptop. This is due to faster graphics plus fast computation of the filters. These numbers are huge as you can imagine. The graphics systems was clearly a severe limiting factor in the performance of the code system. There was really no way for us to know what we would find at the end of the day due to the large variance in cards and drivers. For the time being, the implications are clear: Use the graphics system that gives you the best overall performance. The DirectX (really managed DirectX) is new to us all and will take time to work out in detail (hopefully not as long as the sound card issues took for us to completely understand). Bob Larry W8ER wrote: Bob, Maybe I don't understand your POS statement exactly. I am seeing what everyone else is seeing with respect to DirectX and I am sure that Eric is busting his chops on this. Eric always does! By activating DirectX on my system, I see the CPU utilization rise from 3% or 4% to anywhere between 40% and 50% with the panadapter display. I have never thought of my 2.8 gig Pentium 4 and Intel 865 mobo (including onboard Intel video) as a POS. Does your post mean that I could get better performance from some other add in video card and if so, what would your recommendation be? BTW Preview 8 is a darn nice Christmas present. Thanks Eric! --Larry W8ER -- Laziness is the number one inspiration for ingenuity. Guilty as charged!
Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3
Bob, With the changes in Preview 8 the good RX of the SDR-1000 is now GREAT! My system is: Pentium 4, 3.2 GHz, 1024 MB DDR, XP Pro SP2, Radeon 9550 256 MB, w/RFE, Waveterminal 192X, WDM-KS, USB-to-PIO. The CPU loadings are: - Display off 3.9% - Spectrum 5 FPS 4.7% - Spectrum 15 FPS 6.3% Well done! Thanks for this Christmas present, 73, Ahti OH2RZ - Original Message - From: Robert McGwier [EMAIL PROTECTED] To: KD5NWA [EMAIL PROTECTED] Cc: FlexRadio@flex-radio.biz Sent: Saturday, December 17, 2005 3:12 PM Subject: Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3 Let me say this once since it has not been made explicit. Whether or not DirectX helps you or hurts you is COMPLETELY dependent on the quality of your video card and its driver. If you driver and video card do lots and lots of texturing and rendering, etc. in hardware, it will give you a huge cut down in CPU. If you own a POS video card, to match the POS mobo for the sound card, expect no help from this setting. Please continue to use GDI. (POS == piece of slime, otherwise substitute your favorite) On my laptop, the CPU % moves up and down from 1% to 10% with much more variance than before. However, previous to our use of FFTW3 and DirectX, it was a steady 40%. This latest version is an overall MASSIVE win. The agc is now the FULL two track specification that Phil proposed. The implementation has undergone many iterations and the fast track came together in the last two weeks while sitting in my hotel room in Marburg, Germany. Frank and I attended an AMSAT meeting there where it became absolutely clear that SDR is the future of amateur radio satellites. Phase 3E will use an SDX (software defined transponder) and AMSAT's current Eagle proposal is a software defined satellite. Now if we could only get Software defined launches! Back to the AGC, Phil lives in the land down under. This means that he and I are inverted! Phil suggests setting the fast attack threshold to twice that of slow track to target the same signal. Phil used AGC voltage (the more negative, the more AGC limiting). I use gain. Furthermore, my gain is voltage multiplier. His AGC was dB and inverse gain. The results were like those of the JPL engineers who spoke metric on one side and feet/yards on the other and sent the Mars mission into the dirt. This is entirely my fault and Phil's spec has been fine since day one. I really like the new sound this gives. Thanks so much to Jeff for his constant probing of the agc and his EXTREMELY useful software analysis and critical remarks. Also to Dale for his continued testing and remarks and measurements. Four days ago they gave me their latest comments and measurements on overshoot and I hope we successfully captured the necessary changes in release 8. If not, we are still learning. What I can say is this is a sweet sounding agc now and we should all send our thanks to Phil, VK6APH. Eric is busting his rear end on getting DirectX to work. Like all things, Microsoft works extremely hard to obfuscate as much as possible. I am becoming more and more convinced that you get the secret keys to the kingdom of their documentation, and probably code examples, only as a result of attending this huge thousands of dollars developer courses. Monopolies stink. There is absolutely NOTHING worse than the documentation for WDM-KS. DirectX is slightly improved with the managed directX is an abomination. It silently wrecked the floating point coprocessor and we were pointing the finger at FFTW3 until Eric found a page or two full of complaints about the idiotic silent behavior and then implemented the (behind the hidden handshake and thousands of dollars of training) hidden flag that stops this behavior. Bob N4HY KD5NWA wrote: I just tried Beta 8 on my SR-40 and turned on Direct X, maybe I'm missing something here but my panadapter works just fine, everything is working fine. After turning the panadapter on I doubled checked and the setting is still on Direct X, I don't see a difference when turning it on or off as far as CPU usage. Cecil Bayona KD5NWA
Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3
Ahti: Some got a Christmas present and some got coal in their stockings! You must have been a good boy this year! Anyway, it is a start. Eric has a long way to go on the directX and I can tell you from watching his pain that it is a real bear. Doing the waterfall and histogram in directX has been accompanied by several abortive attempts. It is just very hard in dealing with these Microsoft hidden toys. The FFTW3 is a real win BUT EVERYONE, please run fftw_wisdom. It is more important with FFTW3 and than with FFTW2. Run it in the directory where you found it upon installation. It will deposit a file (fftw_wisdom) in the directory. This file should be in the same directory as the .dll files and the database. fftw_wisdom should be run under the same conditions PowerSDR will be running under. If you have email, browsers, etc. open, the run fftw_wisdom under the same conditions. 73's and thanks for the good news. The ATI Radeon's seem to be mostly solid with this directX implementation. Bob Ahti Aintila wrote: Bob, With the changes in Preview 8 the good RX of the SDR-1000 is now GREAT! My system is: Pentium 4, 3.2 GHz, 1024 MB DDR, XP Pro SP2, Radeon 9550 256 MB, w/RFE, Waveterminal 192X, WDM-KS, USB-to-PIO. The CPU loadings are: - Display off 3.9% - Spectrum 5 FPS 4.7% - Spectrum 15 FPS 6.3% Well done! Thanks for this Christmas present, 73, Ahti OH2RZ -- Laziness is the number one inspiration for ingenuity. Guilty as charged!
Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3
All, I was working with Eric for about 8 hours yesterday trying to make P8 work on my machine before he released the Beta. We never could make it work in DirectX. After reading Bob's post on running fftw_wisdom.exe I gave it a try. My system now runs in DirectX without error, I can't make it fail. I am running a Dell Dimension 8400, 3.4 gHz Pentium, hyperthreading, 1 gB RAM, D44, and ATI X300SE graphics. Go figure! Bob K5KDN -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Robert McGwier Sent: Saturday, December 17, 2005 2:46 PM To: Ahti Aintila Cc: FlexRadio@flex-radio.biz Subject: Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3 Ahti: Some got a Christmas present and some got coal in their stockings! You must have been a good boy this year! Anyway, it is a start. Eric has a long way to go on the directX and I can tell you from watching his pain that it is a real bear. Doing the waterfall and histogram in directX has been accompanied by several abortive attempts. It is just very hard in dealing with these Microsoft hidden toys. The FFTW3 is a real win BUT EVERYONE, please run fftw_wisdom. It is more important with FFTW3 and than with FFTW2. Run it in the directory where you found it upon installation. It will deposit a file (fftw_wisdom) in the directory. This file should be in the same directory as the .dll files and the database. fftw_wisdom should be run under the same conditions PowerSDR will be running under. If you have email, browsers, etc. open, the run fftw_wisdom under the same conditions. 73's and thanks for the good news. The ATI Radeon's seem to be mostly solid with this directX implementation. Bob Ahti Aintila wrote: Bob, With the changes in Preview 8 the good RX of the SDR-1000 is now GREAT! My system is: Pentium 4, 3.2 GHz, 1024 MB DDR, XP Pro SP2, Radeon 9550 256 MB, w/RFE, Waveterminal 192X, WDM-KS, USB-to-PIO. The CPU loadings are: - Display off 3.9% - Spectrum 5 FPS 4.7% - Spectrum 15 FPS 6.3% Well done! Thanks for this Christmas present, 73, Ahti OH2RZ -- Laziness is the number one inspiration for ingenuity. Guilty as charged! ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3
This may be a false alarm. I still crash in the debug mode but not in runtime. I'm downloading a fresh copy of both and will report back when I test them. Bob K5KDN -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Bob Tracy Sent: Saturday, December 17, 2005 3:13 PM To: Robert McGwier; Ahti Aintila Cc: FlexRadio@flex-radio.biz Subject: Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3 All, I was working with Eric for about 8 hours yesterday trying to make P8 work on my machine before he released the Beta. We never could make it work in DirectX. After reading Bob's post on running fftw_wisdom.exe I gave it a try. My system now runs in DirectX without error, I can't make it fail. I am running a Dell Dimension 8400, 3.4 gHz Pentium, hyperthreading, 1 gB RAM, D44, and ATI X300SE graphics. Go figure! Bob K5KDN -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Robert McGwier Sent: Saturday, December 17, 2005 2:46 PM To: Ahti Aintila Cc: FlexRadio@flex-radio.biz Subject: Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3 Ahti: Some got a Christmas present and some got coal in their stockings! You must have been a good boy this year! Anyway, it is a start. Eric has a long way to go on the directX and I can tell you from watching his pain that it is a real bear. Doing the waterfall and histogram in directX has been accompanied by several abortive attempts. It is just very hard in dealing with these Microsoft hidden toys. The FFTW3 is a real win BUT EVERYONE, please run fftw_wisdom. It is more important with FFTW3 and than with FFTW2. Run it in the directory where you found it upon installation. It will deposit a file (fftw_wisdom) in the directory. This file should be in the same directory as the .dll files and the database. fftw_wisdom should be run under the same conditions PowerSDR will be running under. If you have email, browsers, etc. open, the run fftw_wisdom under the same conditions. 73's and thanks for the good news. The ATI Radeon's seem to be mostly solid with this directX implementation. Bob Ahti Aintila wrote: Bob, With the changes in Preview 8 the good RX of the SDR-1000 is now GREAT! My system is: Pentium 4, 3.2 GHz, 1024 MB DDR, XP Pro SP2, Radeon 9550 256 MB, w/RFE, Waveterminal 192X, WDM-KS, USB-to-PIO. The CPU loadings are: - Display off 3.9% - Spectrum 5 FPS 4.7% - Spectrum 15 FPS 6.3% Well done! Thanks for this Christmas present, 73, Ahti OH2RZ -- Laziness is the number one inspiration for ingenuity. Guilty as charged! ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3
Well, My problem with DirectX is only in the debug mode. I installed fresh software for P8, tested both runtime and executable, and then ran fftw_wisdom on both. The runtime codes is working just fine in both cases. I notice a definite decrease in CPU usage after the console has been running for a few minutes. It is initally higher, in the 30-40% range, and then drops into the 3-6% range. RX sounds very good! Sure wish I had thought of running the executable yesterday, might have saved Eric and I a lot of time but when you get focused on a problem you sometimes can't see the forest for the trees. I suspect my problem is with my copy of the DirectX SDK. I updated it on the MS site after I started having problems but the updates from my original version to the current version are documentation only (so I've been told). Unfortunately, there is no way to uninstall DirectX and start over again short of a hd format and reinstalling the OS. The good news is that I can run in debug in the GDI+ mode so I'm not dead in the water as far as CAT development is concerned. Hope everyone finds a solution as easily as I did :) Bob K5KDN -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Bob Tracy Sent: Saturday, December 17, 2005 3:13 PM To: Robert McGwier; Ahti Aintila Cc: FlexRadio@flex-radio.biz Subject: Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3 All, I was working with Eric for about 8 hours yesterday trying to make P8 work on my machine before he released the Beta. We never could make it work in DirectX. After reading Bob's post on running fftw_wisdom.exe I gave it a try. My system now runs in DirectX without error, I can't make it fail. I am running a Dell Dimension 8400, 3.4 gHz Pentium, hyperthreading, 1 gB RAM, D44, and ATI X300SE graphics. Go figure! Bob K5KDN -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Robert McGwier Sent: Saturday, December 17, 2005 2:46 PM To: Ahti Aintila Cc: FlexRadio@flex-radio.biz Subject: Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3 Ahti: Some got a Christmas present and some got coal in their stockings! You must have been a good boy this year! Anyway, it is a start. Eric has a long way to go on the directX and I can tell you from watching his pain that it is a real bear. Doing the waterfall and histogram in directX has been accompanied by several abortive attempts. It is just very hard in dealing with these Microsoft hidden toys. The FFTW3 is a real win BUT EVERYONE, please run fftw_wisdom. It is more important with FFTW3 and than with FFTW2. Run it in the directory where you found it upon installation. It will deposit a file (fftw_wisdom) in the directory. This file should be in the same directory as the .dll files and the database. fftw_wisdom should be run under the same conditions PowerSDR will be running under. If you have email, browsers, etc. open, the run fftw_wisdom under the same conditions. 73's and thanks for the good news. The ATI Radeon's seem to be mostly solid with this directX implementation. Bob Ahti Aintila wrote: Bob, With the changes in Preview 8 the good RX of the SDR-1000 is now GREAT! My system is: Pentium 4, 3.2 GHz, 1024 MB DDR, XP Pro SP2, Radeon 9550 256 MB, w/RFE, Waveterminal 192X, WDM-KS, USB-to-PIO. The CPU loadings are: - Display off 3.9% - Spectrum 5 FPS 4.7% - Spectrum 15 FPS 6.3% Well done! Thanks for this Christmas present, 73, Ahti OH2RZ -- Laziness is the number one inspiration for ingenuity. Guilty as charged! ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3
Bob Just what does running fftw_wisdom.exe do? I ran it and the screen went black then followed typical windows faster than the eye can see scrolling lines of large numbers then black screen (probably supposed to be blue). ctl-alt-del shut down was my response -- had enough of windows-crash this month. Phil, K3IB - Original Message - From: Robert McGwier [EMAIL PROTECTED] To: Ahti Aintila [EMAIL PROTECTED] Cc: FlexRadio@flex-radio.biz Sent: Saturday, December 17, 2005 3:45 PM Subject: Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3 Ahti: Some got a Christmas present and some got coal in their stockings! You must have been a good boy this year! Anyway, it is a start. Eric has a long way to go on the directX and I can tell you from watching his pain that it is a real bear. Doing the waterfall and histogram in directX has been accompanied by several abortive attempts. It is just very hard in dealing with these Microsoft hidden toys. The FFTW3 is a real win BUT EVERYONE, please run fftw_wisdom. It is more important with FFTW3 and than with FFTW2. Run it in the directory where you found it upon installation. It will deposit a file (fftw_wisdom) in the directory. This file should be in the same directory as the .dll files and the database. fftw_wisdom should be run under the same conditions PowerSDR will be running under. If you have email, browsers, etc. open, the run fftw_wisdom under the same conditions. 73's and thanks for the good news. The ATI Radeon's seem to be mostly solid with this directX implementation. Bob
Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3
OK After a trip to the kitchen and a cool down, I ran it again (with fingers crossed) and it looks like it is characterizing the response of the sound card. This time it got to Done! press any key. Phil, K3IB - Original Message - From: Philip M. Lanese [EMAIL PROTECTED] To: Robert McGwier [EMAIL PROTECTED]; Ahti Aintila [EMAIL PROTECTED] Cc: FlexRadio@flex-radio.biz Sent: Saturday, December 17, 2005 5:50 PM Subject: Re: [Flexradio] Beta 8, DirectX, new AGC, use of FFTW3 Bob Just what does running fftw_wisdom.exe do? I ran it and the screen went black then followed typical windows faster than the eye can see scrolling lines of large numbers then black screen (probably supposed to be blue). ctl-alt-del shut down was my response -- had enough of windows-crash this month. Phil, K3IB
