<< Threading inside multiprocessing using queues >>
Hi All,
I am trying to achieve threading inside each process of multiprocessing. I have 2 queues one for multiprocess (process) & another inside each process. when i execute it got hung after below output. My goal here is to go through p_source queue & for each process picks up all t_source queue (parallel) so i have used thread inside process.
Hi All,
Here's my question
I have a 385 MB file containing 5,000,000 records.
I need to read from the file and load into a table.
Initially i thought of doing it in a single thread (execution of a single program) but when calculated accounted 16 hours of time on a standard benchmark.
Hence... (5 Replies)
I'm writing C programs to be executed on a multi-processor UNIX (GNU/Linux, kernel 2.6.11) Do I need to add a special kind of code to somewhere or run a special utility to execute the program file to be executed by all processors? Or is it handled automatically by kernel? (1 Reply)
Sorry, i may be posting the wrong question in this forum... but just curious, suppose we have a set of pre-emptively scheduled processes. A process, B, is multi-threaded with user-level thread scheduling. If one of the threads has a long calculation before making a thread library call, does this... (2 Replies)
I am not sure if multi threading is the correct term, but here is what I am trying to do. I have a while loop that displays the number 1, pauses, displays the number 2, pauses , displays the number 3 ad infinitum. It just keeps counting.
While the screen displays the sequence of numbers counting... (4 Replies)
Hello all,
I recently wrote a simple script for the analysis jobs I do at work. I have to run multiple files through 5 different stages of an analysis program, the script simply runs all of the files through each stage automatically. My question is this: The computer I'm using has 12 cores, each... (8 Replies)
I have a complex problem.....
I have to search files on directory "text files"
then search on all of them for a word or sentence....the user inter
my problem is,,,, if I want to create a child for each file...and point a file by pointer to search...and I don't know how much files i have in... (2 Replies)
Hi there,
I have a code that can take in any function with two arguements and do processing. However, I would like to implement a feature whether it can limit a number of process running concurrently so as not take up too much resources. I have tried researching for pool.map however I am unable... (1 Reply)
Discussion started by: alvinoo
1 Replies
LEARN ABOUT HPUX
wait
wait(1) General Commands Manual wait(1)NAME
wait - await process completion
SYNOPSIS
[pid]
DESCRIPTION
If no argument is specified, waits until all processes (started with of the current shell have completed, and reports on abnormal termina-
tions. If a numeric argument pid is given and is the process ID of a background process, waits until that process has completed. Other-
wise, if pid is not a background process, exits without waiting for any processes to complete.
Because the system call must be executed in the parent process, the shell itself executes without creating a new process (see wait(2)).
Command-Line Arguments
supports the following command line arguments:
The unsigned decimal integer process
ID of a command, whose termination is to wait for.
WARNINGS
Some processes in a 2-or-more-stage pipeline may not be children of the shell, and thus cannot be waited for.
SEE ALSO csh(1), ksh(1), sh-posix(1), sh(1), wait(2).
STANDARDS CONFORMANCE wait(1)