Intel® Fortran Compiler for Linux* and Mac OS X*

OS X 10.9 Xcode 5 error ld: library not found for -lcrt1.10.6.o

Environment:  OS X 10.9 (Mavericks) and Xcode 5.0

Command line compilations/links fail with "ld: library not found for -lcrt1.10.6.o"

Affected compiler:  Intel Composer XE 2013 Update 1

Root cause:  Xcode 5.0 installation does not install all command line tools (include files, libraries, SDKs) need for the compiler to link user applications. 

OpenMP and -heap-arrays not compatible since ifort 13?

Noticed that an application using OpenMP compiled with ifort 15.0.3 20150407 with the flag "-heap-arrays XXX" suffers a large performance degradation, increasing with the number of threads (on 1 thread is the same, on 8 threads it is 4 times slower, on 32 threads it is 16 times slower). This is not the case with ifort 12.1.3 20120212, the same option does not reduce the performance. Any idea why this change?

 

Aligned/Unaligned load instructions generated for SSE2/AVX

I am trying to understand how aligned code is generated and therefore I have created the following code snippet

subroutine add(A, B, C, N)
    implicit none

    integer,intent(in)                :: N
    real*8, intent(in),  dimension(N) :: A,B
    real*8, intent(out), dimension(N) :: C
    !dir$ assume_aligned A:32, B:32, C:32

    !dir$ vector aligned
    C = A+B
    return
end subroutine add

which I am compiling with the following two commands:

ifort -align array32byte -S align.f90 -xavx

and

#6375: Because of COMMON, the alignment of object is inconsistent with its type

Hi,

I saw this topic for the visual Fortran compiler for Windows, I get the same warning on OSX for a code that I didn't write.

#6375: Because of COMMON, the alignment of object is inconsistent with its type

https://software.intel.com/en-us/forums/intel-visual-fortran-compiler-fo...

What does it mean? what are the "potential performance impact"?

Thanks

GB

SSA

What is the status of the Intel Static Security Analysis (SSA) product?  Does it require a separate purchase?  Will it work with the command line on Linux with Intel Fortran 16?

Jay
 

 

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