uudot@venus.lerc.nasa.gov (Dorothy Carney) (09/25/90)
A user is submitting jobs to our Cray X-MP & Y-MP from an IRIS 4D workstation. He has written simple UNIX shell scripts with rsh commands to execute commands on the Cray. Things get out of desired sequence when the commands for the Cray are FORTRAN. His example: WRITE (6,' PROMPT CHARLIE (0/1)') READ (5,*) IRESP STOP END When run interactively on the Cray, he types the name of his executable and gets: testrsh.e PROMPT CHARLIE (0/1) 1 STOP CP: 0.001s, Wallclock: 3.808s where the 1 is his input in response to the read prompt. Trying the same thing using rsh, he gets: rsh lercymp testrsh.e 1 STOP PROMPT CHARLIE (0/1) CP: 0.001.s, Wallclock: 8.670s After typing the rsh, the terminal seems to hang ... but it is open to read standard input. So, when he types 1 it proceeds, with the prompt appearing later. The user's question: WHY DOESN'T THE PROMPT GET WRITTEN BEFORE THE KEYBOARD OPENS FOR THE READ? E-mail replies will be welcomed. Thanks!
uudot@venus.lerc.nasa.gov (Dorothy Carney) (09/25/90)
This is a repeat of posting 285. The gremlins ate the top half of my posting! A user is submitting jobs to our Cray X-MP and Y-MP from his IRIS 4D workstation. He uses UNIX shell scripts with rsh to execute commands on the Cray from his IRIS. It works fine, but when the commands to run on the Cray are FORTRAN, there is a problem with sequencing. Here is his example: WRITE (6,' PROMPT CHARLIE (0/1)') READ (5,*) IRESP STOP END Run interactively on the Cray without rsh, he enters the name of his executable and gets: testrsh.e PROMPT CHARLIE (0/1) 1 STOP CP: 0.001s, Wallclock:3.808s where the 1 was his input in rseponse to the READ prompt. Trying the same commands using rsh, he gets: rsh lercymp testrsh.e 1 STOP PROMPT CHARLIE (0/1) CP: 0.001s, Wallclock: 8.670s After typing the rsh, the job seems to hang ... but it is open to read standard input. So when he types 1, it proceeds with the prompt appearing later. The user's question: WHY DOESN'T THE PROMPT GET WRITTEN BEFORE THE KEYBOARD OPENS FOR THE READ ?? E-mail replies will be appreciated. Thanks.