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IPC between 64-bit and 32-bit installations

asked 2013-02-07 09:25:29 -0500

ebbeowulf gravatar image

updated 2014-01-28 17:15:10 -0500

ngrennan gravatar image

I have two different packages that I need to run in ROS (fuerte), but one works correctly in the 32-bit installation, while the other works only in the 64-bit installation. I do not have the skill set to force either package into the opposing version of ROS.

So, can I run two computers, one with a 32-bit installation and the other with 64-bit, and communicate between them normally? In other words, can I set up a standard roscore on one machine and have the other simply feed data to it?

I've been trying to test this with simulated data, and gotten some errors - but I'm not sure if it was because the difference in 32 vs 64 bit, or because I made some other mistake. And, unfortunately, I need to answer this question before buying the sensor, so I can't test it in hardware yet.

Thank you in advance

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answered 2013-02-07 10:47:14 -0500

Ben_S gravatar image

Since ROS message exchange is based on TCP-sockets, it shouldn't be a problem mixing 32- and 64-bit computers. We are using two 64-bit clients with a 32-bit roscore ourselves, because we need a 32-bit only CANBus driver on our robot.

But you should consider, that depending on your sensor, the network connection can become a bottleneck. So if your sensor requires some heavy bandwidth you may be forced to go the painful way and port one of your components.

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Asked: 2013-02-07 09:25:29 -0500

Seen: 1,062 times

Last updated: Feb 07 '13