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Subject [GitHub] [madlib] fmcquillan99 edited a comment on issue #455: DL: Add new helper function for gpu_configuration
Date Thu, 07 Nov 2019 00:38:36 GMT
fmcquillan99 edited a comment on issue #455: DL: Add new helper function for gpu_configuration
URL: https://github.com/apache/madlib/pull/455#issuecomment-550529308
 
 
   ```
   SELECT * FROM madlib.gpu_configuration();
    hostname |                                        gpu_descr                          
              
   ----------+------------------------------------------------------------------------------------------
    phoenix0 | device: 0, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:04.0, compute capability:
6.0
    phoenix0 | device: 1, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:05.0, compute capability:
6.0
    phoenix0 | device: 2, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:06.0, compute capability:
6.0
    phoenix0 | device: 3, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:07.0, compute capability:
6.0
    phoenix1 | device: 0, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:04.0, compute capability:
6.0
    phoenix1 | device: 1, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:05.0, compute capability:
6.0
    phoenix1 | device: 2, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:06.0, compute capability:
6.0
    phoenix1 | device: 3, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:07.0, compute capability:
6.0
    phoenix2 | device: 0, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:04.0, compute capability:
6.0
    phoenix2 | device: 1, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:05.0, compute capability:
6.0
    phoenix2 | device: 2, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:06.0, compute capability:
6.0
    phoenix2 | device: 3, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:07.0, compute capability:
6.0
    phoenix3 | device: 0, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:04.0, compute capability:
6.0
    phoenix3 | device: 1, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:05.0, compute capability:
6.0
    phoenix3 | device: 2, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:06.0, compute capability:
6.0
    phoenix3 | device: 3, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:07.0, compute capability:
6.0
    phoenix4 | device: 0, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:04.0, compute capability:
6.0
    phoenix4 | device: 1, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:05.0, compute capability:
6.0
    phoenix4 | device: 2, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:06.0, compute capability:
6.0
    phoenix4 | device: 3, name: Tesla P100-PCIE-16GB, pci bus id: 0000:00:07.0, compute capability:
6.0
   (20 rows)
   ```
   OK
   
   However the below does not work:
   ```
   CREATE TABLE gpu_resources AS 
           SELECT * FROM madlib.gpu_configuration();
   
   NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause. Creating a NULL policy entry.
   ERROR:  plpy.SPIError: function cannot execute on segment because it issues a non-SELECT
statement  (entry db 10.138.0.41:5432 pid=16886)
   DETAIL:  
   Traceback (most recent call last):
     PL/Python function "gpu_configuration", line 21, in <module>
       with AOControl(False) and MinWarning("error"):
     PL/Python function "gpu_configuration", line 154, in __enter__
   PL/Python function "gpu_configuration"
   SQL function "gpu_configuration" statement 1
   ```
   I think this is a problem, so I think we should create an output table instead of using
a set returning function.

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