Parallella Community

I'm going to be using Epiphany cores for scheduling in a virtual machine, and I need some kind of way to determine how much work a core has been doing. One way to do that is to read a cycle counter register from the ARM host, if such a register exists.

So, does Epiphany have such a register, or is there an alternative way I could keep track of spent cycles?

There are two timers which can be separately configured to count various things
Some of the options are:
Clock cycles
IALU instructions
FPU intructions
Dual issued IALU + FPU instructions
IDLE mode cycles (only useful if you put the core in idle)

See the description of the CONFIG register in the Architecture manual for the full list. (Also TIMER0 and TIMER1.)

Tim