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Re: [ptp-user] Reading user input
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Thanks for answering. :) Yes, it works under OpenMPI using mpirun. I ended up using command line arguments instead, but I'm still wondering why the other way isn't possible. Unless I don't understand what input redirection is, that wasn't what I was looking for. I just want to be able to use, say, the scanf function. When I run an MPI job from the command line, I see all the output from my program from any task as the program runs. If I ask the node with rank 0 to prompt for and then read user input, the program stops and waits for me to enter a character. I'm sorry if I misunderstood your explanation or failed to explain this properly, but I'm still puzzled.
Natalie
On 3/31/07, Greg Watson <g.watson@xxxxxxxxxxxx> wrote:
Hi Natalie,
Have you tried running the program under OpenMPI using the mpirun command? Does it work? OpenMPI doesn't (or at least didn't) support input redirection so we haven't implemented it yet. Is there some other way you can get around this, such as placing the input into a file and reading from that instead?
Greg
On Mar 30, 2007, at 12:05 PM, Natalie Freed wrote:
Very very basic question, but I can't find it anywhere in the documentation. My MPI program asks for user input from node 0 (using scanf), and while I can see the prompt under process details -> program output and in the shell where I started eclipse, I don't know where I'm supposed to enter the requested value. I'm used to a console appearing in eclipse when a program is run, but here I can't figure out what I'm missing.
Thanks,
-Natalie
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