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Copyright © 2000 Hewlett-Packard Co. Getting Started: A Ski Tutorial 1-11
Ski IA-64 Simulator Reference Manual 1.0L
1.2.9 Running a Program
To run your program, type the “run” command or click the
Run
button in the Main Window. Ski will start the simulation
and connect the program’s standard I/O ports (stdin, stdout, and stderr) to Ski’s standard ports. For example, assuming
there are no breakpoints still set in hello, you will see “hello world” printed out when you run it, as Figure 1-16 shows,
and run statistics will appear in the Main Window, as Figure 1-17 shows. The statistics tell you how many instructions
were simulated and how much time it took, the instructions-per-second rate, the number of IA-64 processor cycles that
were consumed on the simulated CPU, and the average number of instructions per cycle, which provides an indication of
the best-case effective parallelism of the program. (Ski simulates all the instructions in an instruction group in one cycle;
a hardware implementation may not be as capable.)
Ski will stop the simulation for three reasons: if a breakpoint is reached, if the IA-64 program attempts to access privi-
leged resources or non-existent memory, or if the program ends normally by calling exit() or similar functions. If simula-
tion stops due to a breakpoint, you can continue simulation with the “cont” command (“continue”) or you can step
through the simulation with the “step” command or
Step
button. You cannot re-run a program, nor can you re-load it and
start over. You must exit and re-enter
xski
and then reload your program.
Figure 1-15. The Breakpoint List Window