GPU equivalent of "whos" or "feature memstat" ?

Question

Gregory Vernon 2012-1-8

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/25595-gpu-equivalent-of-whos-or-feature-memstat

回答： Matt J 2021-3-1

采纳的回答： Edric Ellis

在 MATLAB Online 中打开

Is there any equivalent of "whos" or "feature memstat" for the gpu either documented or un-documented?

Also, how the heck does this happen?

   feature memstats
    Physical Memory (RAM):
        In Use:                             2265 MB (   8d98c000)
        Free:                               1713 MB (   6b1b0000)
        Total:                              3979 MB (   f8b3c000)
    Page File (Swap space):
        In Use:                             3121 MB (   c3107000)
        Free:                               4835 MB (  12e3a3000)
        Total:                              7956 MB (  1f14aa000)
    Virtual Memory (Address Space):
        In Use:                             2887 MB (   b4728000)
        Free:                            8385720 MB (7ff4b8b8000)
        Total:                           8388607 MB (7fffffe0000)
    Largest Contiguous Free Blocks:
         1. [at 7ffffff0000]      17592177655808 MB (fffff80000010000)
         2. [at   18000b000]             8376285 MB (7fcfdd65000)
         3. [at 7feff841000]                4100 MB (  10044f000)
         4. [at    c6fa0000]                1933 MB (   78d90000)
         5. [at 7fe7dd92000]                1782 MB (   6f64e000)
         6. [at   13fd59000]                1026 MB (   402a7000)
         7. [at 7fef056c000]                 117 MB (    7544000)
         8. [at    962b0000]                  99 MB (    6380000)
         9. [at    b5c68000]                  65 MB (    4138000)
        10. [at 7feed63c000]                  32 MB (    2034000)
                                            ======= ==========
                                        17592186041250 MB (ffffffff3a279000)
ans =  1.8447e+019

(Note: 1. [at 7ffffff0000] 17592177655808 MB (fffff80000010000) )

How in the world do I have 16 EXABYTES of memory?

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Answer 1

Edric Ellis 2012-1-9

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/25595-gpu-equivalent-of-whos-or-feature-memstat#answer_33571

在 MATLAB Online 中打开

You can use the gpuDevice command to show you how much memory your GPU has, and how much is being used. For example, on my machine right now I see this:

>> gpuDevice
ans = 
    parallel.gpu.CUDADevice handle
    Package: parallel.gpu
    Properties:
                        Name: 'Tesla C1060'
                       Index: 1
           ComputeCapability: '1.3'
              SupportsDouble: 1
               DriverVersion: 4
          MaxThreadsPerBlock: 512
            MaxShmemPerBlock: 16384
          MaxThreadBlockSize: [512 512 64]
                 MaxGridSize: [65535 65535]
                   SIMDWidth: 32
                 TotalMemory: 4.2948e+09
                  FreeMemory: 4.2122e+09
         MultiprocessorCount: 30
                ClockRateKHz: 1296000
                 ComputeMode: 'Default'
        GPUOverlapsTransfers: 1
      KernelExecutionTimeout: 0
            CanMapHostMemory: 1
             DeviceSupported: 1
              DeviceSelected: 1