Input/output data to/from tcp

Data are read from electronics by the computer nepvme1 running OS9 and written to the network. These data are accepted from the network by the computer neptun under operating system Linux. Neptun loads the data to the shared memory buffer where it can be read by an analysing program and saved into disk files.

The following steps should be executed to fullfill the described chain of tasks:

Login to nepvme1 to the account daqctl, to neptun to the account daq.
On neptun: Check if the shared memory buffer exists (by the command ipcs) and if the program tcp2shm is running (by the command ps ux). If the memory buffer does not exist, create it by the command shmcreate. The program tcp2shm is run by the command tcp2shm.
On neptun: Start the program to save data from the shared memory buffer into disk files by typing shm2file fileset. Here fileset is a name of file generation where data will be stored.
On nepvme1 start a data acquisition program by typing bash start. This begins the run.
Once data are written to the network, they can be analyzed on neptun by the on-line analysis program.
To stop the run, say on nepvme1 the command bash stop.