The meaning of "core"
Lingua Inglese Hello everyone,Can anyone tell me the exact meaning of "core" ? Does it mean processor?If so, does "multi-core" mean "multi-processor"?I'm really confused with those terms...
View ArticleWelcome to the Intel Threading Building Blocks forum
Lingua Inglese Welcome to the Intel Threading Building Blocks forum, a discussion area for users of the Intel TBB library.Our intent is to maintaina lively and helpful community center to learnand...
View ArticleDG965WH Problems
Lingua Inglese I just bought an DG965WH board and an 2160 cpu.The first problem is with the temperature of the ICH controller who have 90 degrees.Is that normal??? Until i make the latest bios update...
View Articledual core pentium r vs. athlon 64x2
Lingua Inglese I purchased a lap top with a dual core pentium r processor and wanted to know what the difference between a pentium r and athlon 64x2 isthanks, mike
View ArticleDiffs of xchg and cmpxchg to impl. lock
Lingua Inglese I've read the artical Implementing Scalable Atomic Locks for Multi-Core Intel EM64T and IA32 Architectures at...
View ArticleReading Core2 Duo frequency?
Lingua Inglese How can an application get CPU (only Core 2 Duo) frequency ? I tried the method with __rtdsc but the results are different every time I run the application. Reading frequency from Brand...
View ArticleIs Thread Checker telling the truth?
Lingua Inglese Hi,I have a function that's called a lot from within some muiltthreaded code that looks roughly like this (hopefully not too mangled by the web form to read!):Thing* get_thing(){ lock();...
View Articlemulti-thread enabled product
Lingua Inglese We have created some classes for upload and download which inherits from backgroundworker class. There are a list of files which are to be uploaded and downloaded and pass the same to...
View Articleproblem of program perform evaluation ?
Lingua Inglese It is not stable that a program runs on a PC .Sometimes it is slower ,sometimes it is faster .So it is quite difficult to judge my program perform improve or not after a small...
View ArticleCan you spot the race condition?
Lingua Inglese The example program below contains a common threading error. When I first started programming with threads, this was the first race condition to bite me. The program uses Pthreads...
View ArticleResolving kernel symbols with Xeon Phi and MPSS 3.1.2
I'm trying to understand why an application is spending lots of time in [vmlinux], but I can't get VTune to resolve the MIC's kernel. I have found some suggestions...
View ArticleVTUNE and VPU hotspot analysis
I'm using VTUNE to look at the hotspots in my code. I'm down into the vector instructions and confused by a few things. I understand that VTUNE isn't a cycle accurate simulator, but why it is that I...
View Articlempss-3.2.3 installation problem
I have an installation problem of mpss-3.2.3 on CentOSPer 3.2.3 readme, (after stopping and unloading older version of mpss), I ran the uninstall.sh from 3.2.3. The readme showed using the 3.2.3...
View ArticleBranch divergence on Intel Xeon Phi Co-processors
Hi to everyone,I have this small question about the Intel Xeon Phi Co-processors, they suffer performance penalties when the execution branch of the different threads diverges?For example, in GPUs its...
View ArticleNo symbols in VTune for offloaded application
I am collecting a VTune profile for an offloaded program in the following manner:amplxe-cl -collect knc-hotspots -source-search-dir /home/dozog/myapp/src -search-dir /home/dozog/myapp/src -result-dir...
View ArticleError in loading libiomp5.so
Hi!When I run a program on mic0 after compiled with -mmic option, it returnederror while loading shared libraries: libiomp5.so: cannot open shared object file: No such file or directoryI've read this...
View ArticleOptimizing a TBB pipeline
Dear all,I'm currently using a parallel pipeline with I/O bounded filters. Let me remind you my project, if you can bear with me.A serial filter reads a string, a parallel filter transforms a string,...
View ArticleMounting filesystem on a MIC using NFS
Dear forumers,I'm trying to mount some directories from the host on the MIC cards using NFS. I followed step by step the guide...
View ArticleProfiling and analysis on separate machines
Hi everybody,we're in the process of upgrading one of our servers with a Xeon Phi card, and we want to profile and analyze our software using VTune as part of Intel Parallel Studio. Since the server is...
View ArticleHow to graphically evaluate program on mic with vtune
I want to get the detailed information in the Bottom up or Top-down tab, like the assembly code, source code, and the execution time for each particular assembly instruction, just as what I can get on...
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