Platform Issues when Remote Debugging
In general, when debugging programs remotely, the architecture of the remote machine must be compatible with that of the machine running TotalView. For example, you cannot perform remote debugging on a 64-bit Linux system if you launch TotalView from a 32-bit Linux system. In addition, the operating systems must also be compatible.
However, TotalView supports several forms of heterogeneous debugging in which the operating system and/or architecture differ. For example, from a Linux x86-64 session, you can debug remote processes on Linux Power.
This table shows supported combinations:
Host System | Target System |
|---|
Linux x86-64 | Linux x86 (32-bit) Linux x86-64 Linux Power 32 Linux Power 64 Cray XT/XE/XK/XC |
Linux x86 (32-bit) | Linux x86 (32-bit) Linux Power 32 Linux Power 64 |
Linux Power 64 | Linux Power 32 Linux Power 64 Blue Gene |
You must install TotalView for each host and target platform combination being debugged.
NOTE: The path to TotalView must be identical on the local and all remote systems so that TotalView can find the tvdsvr program.
TotalView assumes that you launch tvdsvr using ssh -x. If ssh is unavailable, set the TVDSVRLAUNCHCMD environment variable to the command that you use to remotely access the remote system.
NOTE: If the default single-process server launch procedure meets your needs and you’re not experiencing any problems accessing remote processes from TotalView, you probably do not need the information in this chapter. If you do experience a problem launching the server, check that the tvdsvr process is in your path.
