By: David Kanter (dkanter.delete@this.realworldtech.com), April 22, 2011 9:17 pm
Room: Moderated Discussions
anon (anon@anon.com) on 4/22/11 wrote:
---------------------------
>David Kanter (dkanter@realworldtech.com) on 4/22/11 wrote:
>---------------------------
>>EduardoS (no@spam.com) on 4/22/11 wrote:
>>---------------------------
>>>David Kanter (dkanter@realworldtech.com) on 4/21/11 wrote:
>>>---------------------------
>>>>My understanding (http://www.realworldtech.com/page.cfm?ArticleID=RWT121410213827&p=7)
>>>>is that on Cayman and Cypress, the ALUs are used for address calculations.
>>>
>>>As CPUs use ALUs for more complex address calculations but >we don't call "address
>>>calculations" as "texture fetch", do we?
>>
>>I don't see your point. Some uarchs have dedicated AGUs (e.g. most x86), some
>>do not (e.g. IBM, IA64).
>
>IBM doesn't have dedicated AGUs?!? That's a new one.
Yeah, you're right. I don't know what I was thinking.
>IIRC only IA64 doesn't have AGUs as it has braindead >simple addressing ideal for regular data/array access.
Register indirect with post-increment? I guess it's simpler than displacement...
David
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>David Kanter (dkanter@realworldtech.com) on 4/22/11 wrote:
>---------------------------
>>EduardoS (no@spam.com) on 4/22/11 wrote:
>>---------------------------
>>>David Kanter (dkanter@realworldtech.com) on 4/21/11 wrote:
>>>---------------------------
>>>>My understanding (http://www.realworldtech.com/page.cfm?ArticleID=RWT121410213827&p=7)
>>>>is that on Cayman and Cypress, the ALUs are used for address calculations.
>>>
>>>As CPUs use ALUs for more complex address calculations but >we don't call "address
>>>calculations" as "texture fetch", do we?
>>
>>I don't see your point. Some uarchs have dedicated AGUs (e.g. most x86), some
>>do not (e.g. IBM, IA64).
>
>IBM doesn't have dedicated AGUs?!? That's a new one.
Yeah, you're right. I don't know what I was thinking.
>IIRC only IA64 doesn't have AGUs as it has braindead >simple addressing ideal for regular data/array access.
Register indirect with post-increment? I guess it's simpler than displacement...
David
Topic | Posted By | Date |
---|---|---|
New Article: Predicting GPU Performance for AMD and Nvidia | David Kanter | 2011/04/11 11:55 PM |
Graph is not red-green colorblind friendly (NT) | RatherNotSay | 2011/04/12 03:51 AM |
Fixed | David Kanter | 2011/04/12 08:46 AM |
New Article: Predicting GPU Performance for AMD and Nvidia | James | 2011/04/12 12:30 PM |
New Article: Predicting GPU Performance for AMD and Nvidia | David Kanter | 2011/04/12 02:51 PM |
Try HD6450 or HD6850 | EduardoS | 2011/04/12 03:31 PM |
Try HD6450 or HD6850 | David Kanter | 2011/04/13 10:25 AM |
Try HD6450 or HD6850 | EduardoS | 2011/04/13 03:20 PM |
of cause | Moritz | 2011/04/14 08:03 AM |
of cause | EduardoS | 2011/04/14 01:55 PM |
Barts = 5D | Moritz | 2011/04/14 09:26 PM |
Barts = 5D | Antti-Ville Tuunainen | 2011/04/15 12:38 AM |
Limiting fixed function units | Moritz | 2011/04/15 04:28 AM |
Limiting fixed function units | Vincent Diepeveen | 2011/04/20 02:38 AM |
lack of detail | Moritz | 2011/04/20 09:24 AM |
lack of detail | EduardoS | 2011/04/20 11:45 AM |
gpgpu | Vincent Diepeveen | 2011/04/16 02:10 AM |
gpgpu | EduardoS | 2011/04/17 12:31 PM |
gpgpu | Groo | 2011/04/17 12:58 PM |
gpgpu | EduardoS | 2011/04/17 01:08 PM |
gpgpu | Ian Ameline | 2011/04/18 03:55 PM |
gpgpu | Ping-Che Chen | 2011/04/19 12:59 AM |
GPU numerical compliance | Sylvain Collange | 2011/04/19 11:38 AM |
GPU numerical compliance | Vincent Diepeveen | 2011/04/20 02:17 AM |
gpgpu | Vincent Diepeveen | 2011/04/20 02:02 AM |
gpgpu and core counts | Heikki Kultala | 2011/04/20 04:41 AM |
gpgpu and core counts | Vincent Diepeveen | 2011/04/20 05:52 AM |
gpgpu and core counts | none | 2011/04/20 07:05 AM |
gpgpu and core counts | EduardoS | 2011/04/20 11:36 AM |
gpgpu and core counts | Heikki Kultala | 2011/04/20 10:16 AM |
gpgpu and core counts | EduardoS | 2011/04/20 11:34 AM |
gpgpu and core counts | Heikki Kultala | 2011/04/20 07:24 PM |
gpgpu and core counts | EduardoS | 2011/04/20 08:55 PM |
gpgpu and core counts | Heikki Kultala | 2011/04/21 06:48 AM |
gpgpu and core counts | EduardoS | 2011/04/22 01:41 PM |
AMD Compute and Texture Fetch | David Kanter | 2011/04/21 10:42 AM |
AMD Compute and Texture Fetch | Vincent Diepeveen | 2011/04/22 01:14 AM |
AMD Compute and Texture Fetch | David Kanter | 2011/04/22 10:53 AM |
AMD Compute and Texture Fetch | EduardoS | 2011/04/22 01:46 PM |
AMD Compute and Texture Fetch | David Kanter | 2011/04/22 02:02 PM |
AMD Compute and Texture Fetch | EduardoS | 2011/04/22 02:18 PM |
AMD Compute and Texture Fetch | anon | 2011/04/22 03:30 PM |
AMD Compute and Texture Fetch | David Kanter | 2011/04/22 09:17 PM |
gpgpu and core counts | Vincent Diepeveen | 2011/04/20 12:12 PM |
gpgpu and core counts | Heikki Kultala | 2011/04/21 10:23 AM |
gpgpu and core counts | Vincent Diepeveen | 2011/04/22 02:11 AM |
Keep the crazy politics out of this | David Kanter | 2011/04/22 08:39 AM |
Keep the crazy politics out of this | Vincent Diepeveen | 2011/04/22 09:12 AM |
Keep the crazy politics out of this | David Kanter | 2011/04/22 10:44 AM |
gpgpu and core counts | Jouni Osmala | 2011/04/22 11:06 AM |
gpgpu | EduardoS | 2011/04/20 11:59 AM |
gpgpu | Vincent Diepeveen | 2011/04/20 12:37 PM |
gpgpu | EduardoS | 2011/04/20 05:27 PM |
gpgpu | Vincent Diepeveen | 2011/04/21 02:06 AM |
gpgpu | EduardoS | 2011/04/22 02:00 PM |
New Article: Predicting GPU Performance for AMD and Nvidia | PiedPiper | 2011/04/12 10:05 PM |
New Article: Predicting GPU Performance for AMD and Nvidia | David Kanter | 2011/04/12 10:42 PM |
New Article: Predicting GPU Performance for AMD and Nvidia | MS | 2011/04/15 05:04 AM |
New Article: Predicting GPU Performance for AMD and Nvidia | Kevin G | 2011/04/16 02:25 AM |
New Article: Predicting GPU Performance for AMD and Nvidia | David Kanter | 2011/04/16 08:42 AM |
New Article: Predicting GPU Performance for AMD and Nvidia | Vincent Diepeveen | 2011/04/20 02:20 AM |
memory | Moritz | 2011/04/14 09:03 PM |
memory - more | Moritz | 2011/04/15 11:11 PM |
New Article: Predicting GPU Performance for AMD and Nvidia | Kevin G | 2011/04/14 11:30 AM |