pyprocessing/multiprocessing for x64?

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  • pigmartian
    #1

    pyprocessing/multiprocessing for x64?

    I recently learned (from I response on this newsgroup to an earlier
    query) of the processing module for working with subprocesses in a
    similar manner to threading. For what I needed to do, it worked great
    --- until I tried to run my code on an x64 box, for which that module
    isn't available*. So, I'm just wondering if when processing is renamed
    to multiprocessing and included in the standard lib for 2.6, will x64 be
    supported?


    ~Scott

    *yes, yes, I know. download the source and compile it myself.
    Tags: None
    • Christian Heimes
      #2
      Re: pyprocessing/multiprocessing for x64?

      Benjamin Kaplan wrote:
      I'm not an expert on this, but I think that anything written for x86 (32
      bit) machines can run on x64 machines.
      Become an export - say the opposite :)


        Comment

        • Christian Heimes
          #3
          Re: pyprocessing/multiprocessing for x64?

          Benjamin Kaplan wrote:
          I don't have a 64-bit machine, so I can only go off of what I read. This is
          from the AMD64 FAQ<http://www.amd.com/us-en/Processors/ProductInformat ion/0,,30_118_9331_ 13278,00.html#1 00144>
          Welcome to the world of marketing. The FAQ just explains that AMD64
          compatible processors can still run 32bit programs. It doesn't say that
          you can recompile your code for 64bit w/o trouble.

          It's possible to write software that compiles and works on all sorts of
          platforms and CPU architectures like X86, AMD64, IA64, PPC etc. The
          Python interpreter is a good example.

          However one can easily write C code that runs on 32bit X86 CPUs but
          crashes on 64bit systems. The same code may run on a 64bit Linux/BSD
          system but crashes on a Win32 X64 because 64bit Windows defines a long
          as a 32bit datatype, while a long on 64bit Unix systems has 64bits.

          Christian

            Comment

            • Christian Heimes
              #4
              Re: pyprocessing/multiprocessing for x64?

              Benjamin Kaplan wrote:
              I don't have a 64-bit machine, so I can only go off of what I read. This is
              from the AMD64 FAQ<http://www.amd.com/us-en/Processors/ProductInformat ion/0,,30_118_9331_ 13278,00.html#1 00144>
              Welcome to the world of marketing. The FAQ just explains that AMD64
              compatible processors can still run 32bit programs. It doesn't say that
              you can recompile your code for 64bit w/o trouble.

              It's possible to write software that compiles and works on all sorts of
              platforms and CPU architectures like X86, AMD64, IA64, PPC etc. The
              Python interpreter is a good example.

              However one can easily write C code that runs on 32bit X86 CPUs but
              crashes on 64bit systems. The same code may run on a 64bit Linux/BSD
              system but crashes on a Win32 X64 because 64bit Windows defines a long
              as a 32bit datatype, while a long on 64bit Unix systems has 64bits.

              Christian

                Comment

                • pigmartian
                  #5
                  Re: pyprocessing/multiprocessing for x64?

                  Interesting, I see Christian's responses to Benjamin, but not Benjamin's
                  posts themselves.

                  Anyways, the question remains: will multiprocessing be supported for the
                  x64 platform when it's released in 2.6?

                  pigmartian wrote:
                  I recently learned (from I response on this newsgroup to an earlier
                  query) of the processing module for working with subprocesses in a
                  similar manner to threading. For what I needed to do, it worked great
                  --- until I tried to run my code on an x64 box, for which that module
                  isn't available*. So, I'm just wondering if when processing is renamed
                  to multiprocessing and included in the standard lib for 2.6, will x64 be
                  supported?
                  >
                  >
                  ~Scott
                  >
                  *yes, yes, I know. download the source and compile it myself.

                    Comment

                    • Kris Kennaway
                      #6
                      Re: pyprocessing/multiprocessing for x64?

                      Benjamin Kaplan wrote:
                      The only problem I can see is that 32-bit programs can't access 64-bit
                      dlls, so the OP might have to install the 32-bit version of Python for
                      it to work.
                      Anyway, all of this is beside the point, because the multiprocessing
                      module works fine on amd64 systems.

                      Kris

                        Comment

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