gpgpu

Article: Predicting AMD and Nvidia GPU Performance
By: EduardoS (no.delete@this.spam.com), April 17, 2011 1:08 pm
Room: Moderated Discussions
Groo (charlie@semiaccurate.com) on 4/17/11 wrote:
---------------------------
>I know the Evergreen (5xxx and 6000-6899) and NI/SI (6900-6999) shaders are currently
>fully IEEE FP compliant with one exception, and that is a certain type of interrupt
>handling. For numerical stuff, it is complete, for the programming side, that is the one problem.

IIRC, they lacks denormals and rounding modes.

>I would expect this to be corrected by SI or the gen after, not to mention the
>second gen 'fusion' parts. Interruptability would be a lot easier to accomplish there.

Interrupt handling depends on the programming language/plataform than on hardware, if important the software can check if the values would generate an interrupt and then call the apropriate routine, OpenCL doesn't supports interrupt handling at all so it doesn't matter.

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