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Top Forums Shell Programming and Scripting Spawning multiple threads in Unix Post 302186551 by matrixmadhan on Thursday 17th of April 2008 01:39:08 PM
Old 04-17-2008
a better design / approach would be

( which sometimes may not be the case you are looking for )

have a controller script and it should decide the number of threads to spawn based on throttling, current load, load database that it could with stand and several other factors

also this controller script should receive success / failure message from the instance which it is spawning so that decisions could be taken based on the decision

controller script should be able to collate the results; fluctuate the number of instances running at any point of time..

this might be too much for your requirement, but if you see a pattern of running such tasks in parallel most of the time, this should be a good to go way Smilie
 

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__gnu_parallel::parallel_tag(3cxx)										__gnu_parallel::parallel_tag(3cxx)

NAME
__gnu_parallel::parallel_tag - SYNOPSIS
Inherited by __gnu_parallel::balanced_quicksort_tag, __gnu_parallel::balanced_tag, __gnu_parallel::default_parallel_tag, __gnu_parallel::exact_tag, __gnu_parallel::multiway_mergesort_exact_tag, __gnu_parallel::multiway_mergesort_sampling_tag, __gnu_parallel::multiway_mergesort_tag, __gnu_parallel::omp_loop_static_tag, __gnu_parallel::omp_loop_tag, __gnu_parallel::quicksort_tag, __gnu_parallel::sampling_tag, and __gnu_parallel::unbalanced_tag. Public Member Functions parallel_tag () parallel_tag (_ThreadIndex __num_threads) _ThreadIndex __get_num_threads () void set_num_threads (_ThreadIndex __num_threads) Detailed Description Recommends parallel execution at compile time, optionally using a user-specified number of threads. Definition at line 46 of file tags.h. Constructor &; Destructor Documentation __gnu_parallel::parallel_tag::parallel_tag () [inline] Default constructor. Use default number of threads. Definition at line 53 of file tags.h. __gnu_parallel::parallel_tag::parallel_tag (_ThreadIndex__num_threads) [inline] Default constructor. Recommend number of threads to use. Parameters: __num_threads Desired number of threads. Definition at line 58 of file tags.h. Member Function Documentation _ThreadIndex __gnu_parallel::parallel_tag::__get_num_threads () [inline] Find out desired number of threads. Returns: Desired number of threads. Definition at line 63 of file tags.h. Referenced by __gnu_parallel::__parallel_sort(). void __gnu_parallel::parallel_tag::set_num_threads (_ThreadIndex__num_threads) [inline] Set the desired number of threads. Parameters: __num_threads Desired number of threads. Definition at line 73 of file tags.h. Author Generated automatically by Doxygen for libstdc++ from the source code. libstdc++ Tue Nov 27 2012 __gnu_parallel::parallel_tag(3cxx)
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