Hi Jason, I tried looking at createThreads() in BaseCPU.py and tried to create a thread for my other process as well in modified se.py. I am adding my cpu as tempCPU = [CPUClass(cpu_id = i) for i in xrange(np)] and then I do tempCPU.append(myCPU(cpu_id=i)).
Should I create a new loop for my cpu and do mycpu.createThreads()? My only criteria is whenever I do a pthread_create that function should run on my_cpu. Thank you in advance! Mahesh On Thu, Dec 15, 2016 at 12:55 PM, Jason Lowe-Power <[email protected]> wrote: > Hi Mahesh, > > The problem is exactly what the fatal says: the sys_clone syscall > implementation assumes there is one thread context per process. You need to > either modify this implementation to understand your coprocessor or add a > thread context for the coprocessor in the config script. > > See createThreads() in src/cpu/BaseCPU.py. > > Jason > > On Tue, Dec 13, 2016 at 4:16 PM Mahesh Balasubramanian <[email protected]> > wrote: > >> Hi everybody, >> >> I have built my own ARM CPU in gem5 atomic, which works like a >> coprocessor. Whenever there is a pthread_create call, that function runs on >> mycpu and after pthread_join the progran executes on the main cpu. >> >> I am trying out multiple pthread_create-pthread_join pairs (2 pairs to >> start with) for the only one function. When I compile my program using >> -lpthread flag the program runs fine for the first create-join pair, but >> when when it comes to second pthread_create, I get "*fatal: Called >> sys_clone, but no unallocated thread contexts found!" *message. >> >> So then I compile my program by linking pthread.o from m5threads and ran >> it. Now, in the first pthread_create my program does not exit and is stuck >> (freezes with a blinking cursor) after executing mycpu, meaning it is not >> exiting properly from mycpu. >> >> Surprisingly, I do not get any error when I run a function with hello >> world. It runs perfectly when I use pthread.o to link. >> >> It would be great if someone could guide me in this problem. >> >> Best, >> Mahesh >> >> _______________________________________________ >> gem5-users mailing list >> [email protected] >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > > -- > > Jason > > _______________________________________________ > gem5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >
_______________________________________________ gem5-users mailing list [email protected] http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
