Stephane -
How was this confirmed? Was it in documentation or by example? We can burn
two counters to implement this, but I'd really rather not :(
- d
> -Original Message-
> From: Stephane Eranian [mailto:eran...@google.com]
> Sent: Friday, January 15, 2010 5:22 PM
> To: Dan Terpstra
> Cc:
Dan,
I confirm that you cannot combine unit mask neither FP_COMP_OS_EXE
or SSEX_UOPS_RETIRED. Thus we have to maintain the restriction.
You have to use two counters if you want to measure that in a single run.
On Fri, Jan 15, 2010 at 5:10 PM, Stephane Eranian wrote:
> On Fri, Jan 15, 2010 at
On Fri, Jan 15, 2010 at 1:27 PM, Dan Terpstra wrote:
> Stephane -
>
>> -Original Message-
>> From: Stephane Eranian [mailto:eran...@google.com]
>> Sent: Friday, January 15, 2010 2:42 AM
>> To: Dan Terpstra
>> Cc: perfmon2-devel@lists.sourceforge.net; jag...@eecs.utk.edu
>> Subject: Re: Neh
Stephane -
> -Original Message-
> From: Stephane Eranian [mailto:eran...@google.com]
> Sent: Friday, January 15, 2010 2:42 AM
> To: Dan Terpstra
> Cc: perfmon2-devel@lists.sourceforge.net; jag...@eecs.utk.edu
> Subject: Re: Nehalem and PFMLIB_NHM_UMASK_NCOMBO
>
> On Fri, Jan 15, 2010 at 2
On Fri, Jan 15, 2010 at 2:38 AM, Dan Terpstra wrote:
> Yes. It actually did count without error and produce a result of 0.
> We didn't exactly track the error handling to see if an error was returned
> that PAPI didn't process (always possible :)), but no obvious errors
> appeared. Our original as
Yes. It actually did count without error and produce a result of 0.
We didn't exactly track the error handling to see if an error was returned
that PAPI didn't process (always possible :)), but no obvious errors
appeared. Our original assumption was that the second unit mask,
SSE_SINGLE_PRECISION,
Dan,
I made that change recently because I learned that on NHM, not all unit masks
can be combined. In fact, it seems only unit masks of events counting cycles
apparently can.
But it may be that FP_COMP is an exception I missed.
But something looks strange to me in your results. If you pass 2 un
