Programs Descr iption

1. Program Name : papi-pthreads-find-min-value.c

Descr iption : The program randomly generated the list of integers.The list

　　　　 of integers is partitioned equally among the threads. The

　　　　 size of each threads partition of stored in a variable and

　　　　 the pointer to the start of each threads partial list is

　　　　 passed to it as a pointer.The minimum value is protected by

　　　　 the mutex-lock .Threads execute the mutex lock to gain

　　　　 exclusive access to the minimum value. Once this access is

　　　　 gained, the value is updated as required, and the lock

　　　　 subsequently released. Since at any time, only one thread

　　　　 can hold the lock, only one thread can update the value. As

　　　　 each thread does the work, an event set is created with the

　　　　 events PAPI_TOT_INS, PAPI_TOT_CYC, & PAPI_LST_INS and these

　　　　 events data for each thread are captured.



Compilation :

　　For compiling the codes, use the Makefile provided with make utility.

-Programs Descr iption

1. Program Name : papi-pthreads-find-min-value.c

　　Descr iption : The program randomly generated the list of integers.The list

　　　　　of integers is partitioned equally among the threads. The

　　　　　size of each threads partition of stored in a variable and

　　　　　the pointer to the start of each threads partial list is

　　　　　passed to it as a pointer.The minimum value is protected by

　　　　　the mutex-lock .Threads execute the mutex lock to gain

　　　　　exclusive access to the minimum value. Once this access is

　　　　　gained, the value is updated as required, and the lock

　　　　　subsequently released. Since at any time, only one thread

　　　　　can hold the lock, only one thread can update the value. As

　　　　　each thread does the work, an event set is created with the

　　　　　events PAPI_TOT_INS, PAPI_TOT_CYC, & PAPI_LST_INS and these

　　　　　events data for each thread are captured.



Compilation :

　　For compiling the codes, use the Makefile provided with make utility.