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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. Local variables to be saved/static

    https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/536740

    Dec 3, 2014 ... On g77, it required the -no-automatic switch so that local variables would ... Software Development Products › Intel® Fortran Compiler for Linux* ...

  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 variable, shall ... 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. 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 ...

  11. 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 .

  12. 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).

  13. 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.

  14. 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.

  15. 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 ...

  16. 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.

  17. 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 ...

  18. 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

  19. In Debug mode Watch doesn't display proper values

    https://software.intel.com/en-us/forums/debug-solutions/topic/328615

    While in Debug mode and stepping through execution lines, all local variables, whether I specify them in the Watch window, or mouse over ...

  20. 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 ...

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