V
Vikas Vijay
hello all,
I have a c++ code in which is sth like
while(i < N)
{
....
do some processing in c++ to create file abc
system("simulator_name < abc")
......c++ ... processing......
}
The problem is my simulator takes some time T to load and only then
starts working on the file abc.After completion the simulator is
exited and the same thing(loading + execution happens in next
iterations..) Since the number of iterations are huge (wasted time NT)
i want something like :
open the simulator only once( just doing system("simulator_name") and
get the handle to the simulator prompt. From then on i just load the
new "abc" file in each iteration, wait for the simulation to complete
(do not exit the simulator) and start my new iteration.
I read about creating a new child process(popen command) etc but could
not figure out exactly how to get a handle to the prompt, and wait
till the simulation is completed. Also the child process is not to be
killed otherwise i lose the handle.
I would appreciate any help/references in this regard. There is
nothing simulator specific. You can imagine a simple gdb command in
place of simulator_command and handle at gdb>
-Thanks
Vikas
I have a c++ code in which is sth like
while(i < N)
{
....
do some processing in c++ to create file abc
system("simulator_name < abc")
......c++ ... processing......
}
The problem is my simulator takes some time T to load and only then
starts working on the file abc.After completion the simulator is
exited and the same thing(loading + execution happens in next
iterations..) Since the number of iterations are huge (wasted time NT)
i want something like :
open the simulator only once( just doing system("simulator_name") and
get the handle to the simulator prompt. From then on i just load the
new "abc" file in each iteration, wait for the simulation to complete
(do not exit the simulator) and start my new iteration.
I read about creating a new child process(popen command) etc but could
not figure out exactly how to get a handle to the prompt, and wait
till the simulation is completed. Also the child process is not to be
killed otherwise i lose the handle.
I would appreciate any help/references in this regard. There is
nothing simulator specific. You can imagine a simple gdb command in
place of simulator_command and handle at gdb>
-Thanks
Vikas