AMD Compute and Texture Fetch

Article: Predicting AMD and Nvidia GPU Performance
By: David Kanter (dkanter.delete@this.realworldtech.com), April 22, 2011 10:17 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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TopicPosted ByDate
New Article: Predicting GPU Performance for AMD and NvidiaDavid Kanter2011/04/12 12:55 AM
  Graph is not red-green colorblind friendly (NT)RatherNotSay2011/04/12 04:51 AM
    FixedDavid Kanter2011/04/12 09:46 AM
  New Article: Predicting GPU Performance for AMD and NvidiaJames2011/04/12 01:30 PM
    New Article: Predicting GPU Performance for AMD and NvidiaDavid Kanter2011/04/12 03:51 PM
  Try HD6450 or HD6850EduardoS2011/04/12 04:31 PM
    Try HD6450 or HD6850David Kanter2011/04/13 11:25 AM
      Try HD6450 or HD6850EduardoS2011/04/13 04:20 PM
        of causeMoritz2011/04/14 09:03 AM
          of causeEduardoS2011/04/14 02:55 PM
            Barts = 5DMoritz2011/04/14 10:26 PM
              Barts = 5DAntti-Ville Tuunainen2011/04/15 01:38 AM
                Limiting fixed function unitsMoritz2011/04/15 05:28 AM
                  Limiting fixed function unitsVincent Diepeveen2011/04/20 03:38 AM
                    lack of detailMoritz2011/04/20 10:24 AM
                      lack of detailEduardoS2011/04/20 12:45 PM
            gpgpuVincent Diepeveen2011/04/16 03:10 AM
              gpgpuEduardoS2011/04/17 01:31 PM
                gpgpuGroo2011/04/17 01:58 PM
                  gpgpuEduardoS2011/04/17 02:08 PM
                  gpgpuIan Ameline2011/04/18 04:55 PM
                    gpgpuPing-Che Chen2011/04/19 01:59 AM
                      GPU numerical complianceSylvain Collange2011/04/19 12:38 PM
                        GPU numerical complianceVincent Diepeveen2011/04/20 03:17 AM
                gpgpuVincent Diepeveen2011/04/20 03:02 AM
                  gpgpu and core countsHeikki Kultala2011/04/20 05:41 AM
                    gpgpu and core countsVincent Diepeveen2011/04/20 06:52 AM
                      gpgpu and core countsnone2011/04/20 08:05 AM
                        gpgpu and core countsEduardoS2011/04/20 12:36 PM
                      gpgpu and core countsHeikki Kultala2011/04/20 11:16 AM
                        gpgpu and core countsEduardoS2011/04/20 12:34 PM
                          gpgpu and core countsHeikki Kultala2011/04/20 08:24 PM
                            gpgpu and core countsEduardoS2011/04/20 09:55 PM
                              gpgpu and core countsHeikki Kultala2011/04/21 07:48 AM
                                gpgpu and core countsEduardoS2011/04/22 02:41 PM
                              AMD Compute and Texture FetchDavid Kanter2011/04/21 11:42 AM
                                AMD Compute and Texture FetchVincent Diepeveen2011/04/22 02:14 AM
                                  AMD Compute and Texture FetchDavid Kanter2011/04/22 11:53 AM
                                AMD Compute and Texture FetchEduardoS2011/04/22 02:46 PM
                                  AMD Compute and Texture FetchDavid Kanter2011/04/22 03:02 PM
                                    AMD Compute and Texture FetchEduardoS2011/04/22 03:18 PM
                                    AMD Compute and Texture Fetchanon2011/04/22 04:30 PM
                                      AMD Compute and Texture FetchDavid Kanter2011/04/22 10:17 PM
                        gpgpu and core countsVincent Diepeveen2011/04/20 01:12 PM
                          gpgpu and core countsHeikki Kultala2011/04/21 11:23 AM
                            gpgpu and core countsVincent Diepeveen2011/04/22 03:11 AM
                              Keep the crazy politics out of thisDavid Kanter2011/04/22 09:39 AM
                                Keep the crazy politics out of thisVincent Diepeveen2011/04/22 10:12 AM
                                  Keep the crazy politics out of thisDavid Kanter2011/04/22 11:44 AM
                              gpgpu and core countsJouni Osmala2011/04/22 12:06 PM
                  gpgpuEduardoS2011/04/20 12:59 PM
                    gpgpuVincent Diepeveen2011/04/20 01:37 PM
                      gpgpuEduardoS2011/04/20 06:27 PM
                        gpgpuVincent Diepeveen2011/04/21 03:06 AM
                          gpgpuEduardoS2011/04/22 03:00 PM
  New Article: Predicting GPU Performance for AMD and NvidiaPiedPiper2011/04/12 11:05 PM
    New Article: Predicting GPU Performance for AMD and NvidiaDavid Kanter2011/04/12 11:42 PM
      New Article: Predicting GPU Performance for AMD and NvidiaMS2011/04/15 06:04 AM
        New Article: Predicting GPU Performance for AMD and NvidiaKevin G2011/04/16 03:25 AM
          New Article: Predicting GPU Performance for AMD and NvidiaDavid Kanter2011/04/16 09:42 AM
          New Article: Predicting GPU Performance for AMD and NvidiaVincent Diepeveen2011/04/20 03:20 AM
    memoryMoritz2011/04/14 10:03 PM
      memory - moreMoritz2011/04/16 12:11 AM
  New Article: Predicting GPU Performance for AMD and NvidiaKevin G2011/04/14 12:30 PM
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