Hi,
I'm trying to take a statistics snapshot before and after a particular
kernel but it is giving me problems.
My code looks like this:
---------------------------------------
ptlcall_capture_stats("pre");
// call to function
ptlcall_capture_stats("post");
---------------------------------------
My console shows me the following output:
---------------------------------------
Completed 2630000 cycles, 858781 commits: 459604 Hz,
114181 insns/sec: rip ffffffff813594c1ptlcall_mmio_write: calltype 2
at rip 4196121 (inside_ptlsim = 1 )
PTLCALL type PTLCALL_ENQUEUE
MARSSx86::Command received : -snapshot-now pre
ptlcall_mmio_write: calltype 2 at rip 4196121 (inside_ptlsim = 1 )
PTLCALL type PTLCALL_ENQUEUE
MARSSx86::Command received : -snapshot-now post
Completed 5825000 cycles, 1934160 commits: 428036 Hz,
119043 insns/sec: rip ffffffff81100b35ptlcall_mmio_write: calltype
2 at rip 4196905 (inside_ptlsim = 1 )
PTLCALL type PTLCALL_ENQUEUE
MARSSx86::Command received : -kill
---------------------------------------
The logfile has the following too:
---------------------------------------
*snipped*
Start logging at level 0 in cycle 2689123
Making stats snapshot uuid 0 named pre at cycle 2690000
*snipped*
Start logging at level 0 in cycle 2691898
Completed 2692000 cycles, 890788 commits: 303511 Hz,
156685 insns/sec: rip 000000000040cab6
Making stats snapshot uuid 0 named post at cycle 2692000
*snipped*
---------------------------------------
When I call ptlstats:
---------------------------------------
../ptlstats -snapshot pre ./kernel.stats
ptlstats: Cannot get snapshot 'pre'
./ptlstats -snapshot post ./kernel.stats
ptlstats: Cannot get snapshot 'post'
---------------------------------------
There exists 3 snapshots in the stats file, but I don't believe they
are what I'm looking for:
---------------------------------------
1.
snapshot_name = "user"; { (zero) }
snapshot_uuid = 0; { (zero) }
2.
snapshot_name = "kernel"; { (zero) }
snapshot_uuid = 1;
3.
snapshot_name = "global"; { (zero) }
snapshot_uuid = 2;
---------------------------------------
I call my program as the website suggests
---------------------------------------
./start_sim; ./kernel ; ./kill_sim;
---------------------------------------
I'm using the latest MARSS 'master' branch in the GIT repository.
I'd really appreciate if you could explain what's going on. Is this an
error on my part or a bug with MARSS? I want to do this so I can look
at the statistics of this function in isolation.
Kind regards
Tim
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