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  1. The hidden performance cost of accessing thread-local variables ...

    https://software.intel.com/en-us/blogs/2011/05/02/the-hidden-performance-cost-of-accessing-thread-local-variables

    May 2, 2011 ... It is a Linux kernel function to get the address of a thread-local variable. The cost of this function should be small. What happened here?

  2. Performance Tools for Software Developers - Thread-local variables ...

    https://software.intel.com/en-us/articles/performance-tools-for-software-developers-thread-local-variables-and-initialization

    Sep 19, 2008 ... Thread Local Storage (TLS) variable is declared using storage class ... Red Hat* Enterprise Linux Desktop 3 Update 3, Red Hat* Enterprise ...

  3. initialization of local variables

    https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/557211

    May 3, 2015 ... My co-developer reports that, contrary to his expectations, Intel Fortran seems to be initializing local numeric variables, both scalar and array, ...

  4. Local Variables Declaration and Initialization

    https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/703667

    Nov 22, 2016 ... For reason I do not understand, any local variable given a value ... Development Products › Intel® Fortran Compiler for Linux* and Mac OS X*.

  5. Compile-time checking of uninitialized variables

    https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/498784

    ... more helpful if the compiler had a compile-time check for use of uninitialized variables. ... each routine to be sure that nothing depends on local variables being initialized to zero. ... Use -save (Linux and Mac OS X) or [........].

  6. Can anyone explain how to store a value returns by a linux ...

    https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/563443

    Jul 24, 2015 ... Can anyone explain how to store a value returns by a linux command in a fortran local variable without using IO operations.

  7. Use Thread-local Storage to Reduce Synchronization | Intel® Software

    https://software.intel.com/en-us/articles/use-thread-local-storage-to-reduce-synchronization

    Nov 2, 2011 ... Using thread-local data structures instead of data structures shared by the ... Consider, for example, the use of a variable to count events that ...

  8. repeat initialization of local variable

    https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/557248

    Notwithstanding the Fortran standard: ""A variable, or part of a ... Intel® Software Development Products › Intel® Fortran Compiler for Linux* and Mac OS X* .... And with all of our local variables being saved, it is assigned once.

  9. Multithreaded Fortran application - data race --> Threads seem to ...

    https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/271008

    Since it is a local variable for the function walk_worker_thread(), in our understanding, this should be ... Linux curie50 2.6.32-71.24.1.el6.

  10. idb-linux-12.pdf (1.6 MB)

    https://software.intel.com/sites/default/files/04/0d/idb-linux-12.pdf

    for Linux*. Tutorial. Bernth Andersson. Stephen Blair-Chappell ..... Figure 5 - Variable view in source window and in the Locals (Local variable) window .

  11. Fortran SAVE attribute default behavior and runtime stack vs. static ...

    https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/270414

    Causes all local, non-SAVEd variables to be allocated on the run-time ... LIFO ( presumably at the end of the process heap on Linux/Unix).

  12. Common block variables, debugger, <no value>

    https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/268860

    Jan 15, 2008 ... Then I also noticed that access to all local variables disappears if the ... variable of the same common block, while the Linux version cannot.

  13. Avoiding and Identifying False Sharing Among Threads | Intel ...

    https://software.intel.com/en-us/articles/avoiding-and-identifying-false-sharing-among-threads

    Nov 2, 2011 ... It occurs when threads on different processors modify variables that ... Thread- local storage or local variables can be ruled out as sources of ...

  14. debug (Linux* and OS X*) | Intel® Software

    https://software.intel.com/en-us/node/523009

    However, on Linux* OS, the -debug inline-debug-info option will be enabled by default ... This feature allows the run-time locations of local scalar variables to be  ...

  15. Multithreaded Fortran Subroutine Guidelines?

    https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/270572

    Jan 10, 2011 ... ... to compile the Fortran code and gcc v4.1.2 to compile and link the program in Linux. ... local variables declared within the subroutines/functions will be ... The default for function/subroutine declared "local" arrays are SAVE.

  16. Segfault when using static __thread variables with gold linker in linux

    https://software.intel.com/en-us/forums/intel-c-compiler/topic/475114

    Linux ubuntu 3.2.0-55-generic #85-Ubuntu SMP Wed Oct 2 12:29:27 UTC 2013 ... /spare/local/environ-infra/binutils/2.24/bin/gold/ld --version

  17. Volatile: Almost Useless for Multi-Threaded Programming | Intel ...

    https://software.intel.com/en-us/blogs/2007/11/30/volatile-almost-useless-for-multi-threaded-programming

    Nov 30, 2007 ... marking a local variable in the scope of a setjmp so that the variable does ... " Declaring your variables volatile will have no useful effect, and will ...

  18. Fortran Compiler Options ifort(1)

    https://software.intel.com/sites/default/files/m/f/8/5/8/0/6366-ifort.txt

    -auto Causes all local, non-SAVEd variables to be allo cated on the run-time .... The default on Linux systems is -no-cxxlib, which tells the compiler to use the ...

  19. why automatic variables can not be compiled on Intel fortran compiler

    https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/268391

    Hi,I am using Intel Fortran compiler 32 bit for linux. ... If you want all local variables to be automatic, then use -automatic or add the RECURSIVE ...

  20. How to initialize all local variables to zero

    https://software.intel.com/en-us/forums/intel-visual-fortran-compiler-for-windows/topic/597810

    I've been given a program developed for gfortran that relies on the -finit-local- zero option, which initializes all local variables to zero.

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