Changes between Version 37 and Version 38 of AppCoprocessor


Ignore:
Timestamp:
Jun 6, 2012, 9:55:01 AM (12 years ago)
Author:
davea
Comment:

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  • AppCoprocessor

    v37 v38  
    6767
    6868== Plan classes ==
    69 Each coprocessor application has an associated [wiki:AppPlan plan class]
    70 which determines the hardware and software resources that are needed to run the application.
    7169
    72 '''NOTE: plan classes for AMD GPUs must contain the substring 'ati';
    73 plan classes for NVIDIA GPUs much contain either 'nvidia' or 'cuda' as a substring.'''
    74 
    75 The following plan classes for NVIDIA are pre-defined:
    76 
    77  '''cuda''':: NVIDIA GPU, compute capability 1.0+, driver version 177.00+, 254+ MB RAM.
    78  '''cuda23''':: Requires driver version 190.38+, 384+ MB RAM.
    79  '''cuda_fermi''':: Requires compute capability 2.0+ and CUDA version 3.0+
    80  '''opencl_nvidia_101''':: Requires OpenCL 1.1+ support
    81 
    82 For ATI the situation is more complex because AMD changed the DLL names from amd* to ati* midstream;
    83 applications are linked against a particular name and will fail if it's not present.
    84 
    85  '''ati''':: CAL version 1.0.0+, amd* DLLs
    86  '''ati13amd''':: CAL version 1.3+, amd* DLLs
    87  '''ati13ati''':: CAL version 1.3+, ati* DLLs
    88  '''ati14''':: CAL version 1.4+, ati* DLLs
    89  '''opencl_ati_101''':: OpenCL 1.1+
    90 
    91 You can verify which DLLs your application is linked against by using
    92 [http://www.dependencywalker.com/ Dependency Walker] against your application.
    93 If your executable contains DLL names prefixed with 'amd' then your plan class
    94 will be ati or ati13amd depending on which version of the CAL SDK you are using.
    95 If the DLL names are prefixed with 'ati' then use the ati13ati or ati14 plan classes.
    96 
    97 In all cases (NVIDIA and ATI), the application is assumed to use 1 GPU,
    98 and the CPU usage is assumed to be 0.5% the FLOPS of the GPU.
    99 If there is a choice, the scheduler will give preference to later classes,
    100 i.e. it will pick cuda23 over cuda.
    101 
    102 Once you have chosen a plan class for your executable,
    103 create an [wiki:UpdateVersions app version], specifying its plan class.
    10470
    10571== Defining a custom plan class ==