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doku:runtime [2014/06/03 10:47] – [Soft runtime limit] irdoku:runtime [2014/12/12 09:43] – [Soft runtime limit] ir
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 In SGE Jobs two runtime limits are available:  In SGE Jobs two runtime limits are available: 
-  * soft runtime (s_rt) and  +  * **soft runtime (s_rt):** \\ after this time has elapsed, GridEngine sends a SIGUSR1 signal to the process. 
-  * hard runtime (h_rt).+  * **hard runtime (h_rt):** \\ after this time has elapsed, GridEngine sends a SIGUSR2 signal and running processes are killed. 
  
-h_rt: after this time has elapsed, GridEngine sends a SIGUSR2 signal and running processes are killed. +The SIGUSR1 signal (s_rt) informs the process about the time already elapsed. In fact that the original process presumably exceeds h_rt, the process could be modified. 
- +====example:==== 
-s_rt: after this time has elapsed, GridEngine sends a SIGUSR1 signal to the process. +h_rt is a multiple of s_rt, here s_rt=0:02:00 and h_rt=0:20:00, a factor n=10:
- +
-By exploiting the SIGUSR1 signal (s_rt), the process knows how much time is left and can start saving the data. +
- +
-If s_rt is n times smaller than h_rt SIGUSR1 is sent n times:+
  
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