advice sought for 64bit env.
- garyinspringhill
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Any pointers to add when compiling 64bit version of emc would be greatly appreciated!
Thanks
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I have a nice IBM server , 4 dual core xeons and 16 gig ram etc. I'd like to use as my emc machine among other things. I need to know what version of 64bit linux to start off with.
Is there any compelling reason to run a 64 bit OS on the machine? I think you might be setting up for a lot of work for very little actual gain.
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I would agree with Andy, I gave up running 64bit Linux distros a couple of years ago.
Didn't find them any faster (very few programs are written to exploit the processor fully), tended to be less stable and a lot of useful programs are not ported to 64bit in latest versions (FlashPlayer is a frequent example).
wiki.linuxcnc.org/emcinfo.pl?Installing_...me_on_64_bit_systems
gives a little info but getting out of date
The magma realtime patches for x86_64 only go up to kernel 2.6.23 at present, so you won't be compiling any bleeding edge kernels unless you write your own patches.
Anyway, having 8 CPUs may actually turn out to be a latency minefield. You might have to disable 7 of them to get any decent figures!
What latency figures do you get with the 10.04 install?
regards
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- garyinspringhill
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With what seems like a headache for emc 64bit it sounds better just to have a separate workstation for emc but can I still use the horsepower of the 64 bit server by running the remote shared computing power of 64 bit pycam to a 32 bit pycam workstation? Pycam seems to take hours on large files and if I use the servers cpus to help with the job it will undoubtedly speed things up.
Thanks for the advice I think you saved me a lot of sleepless nights and pots of coffee!
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I can't see any reason why not.The server has a lot of tasks to do like feed thin clients, mysql, webserver, cctv, virtualbox so the 64bit is a must for the 16 gig ram cpu loads.
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it sounds better just to have a separate workstation for emc but can I still use the horsepower of the 64 bit server by running the remote shared computing power of 64 bit pycam to a 32 bit pycam workstation?
I would suggest that you keep your server as a performance workstation, and buy a very cheap, low-latency computer for the EMC2 machine.
We can guarantee that an Intel BOXD525MW mini-ITX motherboard for about $80 will run EMC2 brilliantly, with super-low latency, and no moving parts. Put it in the machine case, run it off machine 12V with a PicoPSU and treat it as an embedded controller.
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