Profile Failed
Hello,I profiled the sample project tachyon vc10, and got a problem.. B elow is the log:Analyzing Debug configuration 11/24/14 19:49:16 Profiling Debug configuration may provide misleading results....
View ArticleFinalizing results hangs with large .pdb file
I am experiencing an issue with Intel VTune Amplifier.My executable has a rather large .pdb file (~390MB). After collecting data, the resolve step hangs while resolving symbols. I can fix the problem...
View ArticleVtune "named user license" on both windows and linux
Hello,I've read online that it is possible to use Vtune on muliple machines with a "named user license". Is this true for both Windows and Linux at the same time? Can I use my "named user license"...
View ArticleError: [Instrumentation Engine]: Function IMG_FindByUnloadAddress called...
HiI have been profiling the same FORTRAN OpenMP code on 4 threads on a node comprising 2x 6-core Westmere, under the SGE batch system where I have reserved all 12 cores exclusively for my use.Out of my...
View Article_init() instrumentation failed
I'm getting an instrumentation fault when I attempt to do a hotspot analysis. It is an evaluation copy and the binary was generated by a Go compiler. Does anyone have a clue why vtune is looking for...
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Cannot locate file
Hi,After having spent half an hour collecting the result of a collect, VTune tells me that it cannot find a set of file, including libraries from intel compiler.Note that VTune has access to exactly...
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Time spent in functions ?
Hi,I have an application built with intel compilers (version 15) and -g -O2 mode (optim+debug info).The application was run through amplxe-cl -collect hotspots.When lauchin VTune on the collected info,...
View Articlesatus for perf events in perf stats
Hi all,I am using Intel i5-3337U processor. I want to get several perf events for a process via PID.However when I am running perf stat command with several events for some seconds,in some execution...
View ArticleWhere do context switches come from?
Hi, I'm trying to analyze which line of code the preemption context switches and synchronization context switches come from in my program using VTune 2013 update 17. I have no idea how to do it. Can...
View ArticleVTune installation problem
HI, when I'm installing VTune 2013 update 17, at the last step, an error log appeared shown below:Warning: no sep3_15 driver was found loaded in the kernel. Checking for PMU arbitration service (PAX)...
View Articleamplxe-runss.py looking for 32bit collector; should use 64 bit instead
My host system is 64 bit, my target system (xeon phi) is also 64 bit. When I runexport AMPLXE_TARGET_PRODUCT_DIR="/amplxe" amplxe-runss.py [...]It gives me back "/amplxe/bin32/amplxe-runss: No such...
View ArticlePMU resource(s) currently being used by another profiling tool or process
Hi, I would please your help with the following. We are using intel vtune on a cluster. I submit two different jobs that collect hardware counters on two different nodes/boxes on our cluster. The...
View ArticleHow to identify the cause for the high CPI rate
I was trying to identify the reason for the lateness of my program. And I notice that one function has high CPI value (4.5), and it says the reason mayMemory stalls Instruction starvation Branch...
View ArticleProfiling an application which uses SIGNALS
Hello, we are using Intel VTune 2015 for profiling our application which is running under CentOS 5.11. Our application uses c++ signals for the control flow. When trying to do a basic hotspots analysis...
View ArticlePerformance Overhead Introduced By Tool Itself
Hi all,We are now trying to evaluate this tool for our products.Our main interest in vtune is wether is can profile apps without any overhead.The problem with profiling is that generally the profiling...
View ArticleCall stack mechanism implementation question
I am running a Go program with dwarf information and VTune does a good job figuring out line numbers and so forth but it struggles with stack walks. I am guessing that it is because Go's stack...
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insufficient virtual memory
I am getting an error while loading a result from a general exploration experiment. This is an MPI executable, but collection was only done for one process on each node. See attached PNG for the...
View Articlesfdump5 tool in VTune
There seems to be some mention of a command-line sfdump5 tool that can be used to process/view the samples within a .tb6 file. There is also documentation of this tool in the 3.11 revision of the SEP...
View ArticleCentos7 kernel oops when running
When evaluating the vtune_amplifier_xe_2015.1.0.367959 on Linux I experienced a kernel oops in the vtune kernel modules. I was trying to run the microarchitecture -> general exploration ->...
View ArticleA 'Failed to create sampling data base' Problem
I am newer to VTune, and using VTune performance analyzer v9.1 on Windows XP(Intel Pentium G3420).When I try to log Clockticks information, the VTune always show erro that "Failed to create sampling...
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