topic MKL vs Eclipse in Intel® oneAPI Math Kernel Library

MKL vs Eclipse

e_ustimenko — Thu, 03 Feb 2011 11:50:33 GMT

Hello, my friends developers.

I need your help. Need to setting Eclipse to MKL. I use your help:http://software.intel.com/sites/products/documentation/hpc/composerxe/en-us/mklxe/mkl_userguide_lnx/index.htm

But after settings Eclipse out some errors:

ld: cannot find -l/home/evgeny/Soft/IntelParallelStudio/mkl/lib/ia32/libmkl_intel_thread.a

ld: cannot find -l/home/evgeny/Soft/IntelParallelStudio/mkl/lib/ia32/libmkl_core.a

ld: cannot find -l/home/evgeny/Soft/IntelParallelStudio/mkl/lib/ia32/libmkl_intel.a

ld: cannot find -l/home/evgeny/Soft/IntelParallelStudio/mkl/lib/ia32/libmkl_intel_thread.ald: cannot find -l/home/evgeny/Soft/IntelParallelStudio/mkl/lib/ia32/libmkl_core.ald: cannot find -l/home/evgeny/Soft/IntelParallelStudio/mkl/lib/ia32/libmkl_intel.a

From your article I can't do

"For Managed Make projects, you can specify settings for a particular build. To do this:..."

Thank u for help.

MKL vs Eclipse

Dmitry_B_Intel — Thu, 03 Feb 2011 12:05:36 GMT

Hi Evgeny,

The dash-ell options (-lxxx) should receive the name of the library less the "lib" prefix and suffix, i.e. should look like -lmkl_intel_thread -lmkl_core and so on. The path should go to dash-cap-ell option (-L). User guide says about this:

Specify the names of the Intel MKL libraries to link with your application, for example, mkl_intel_lp64, mkl_intel_thread_lp64, mkl_core, and iomp5 (compilers typically require library names rather than library file names, so omit the "lib" prefix and "a" extension).

Thanks
Dima

MKL vs Eclipse

e_ustimenko — Thu, 03 Feb 2011 12:09:14 GMT

Where I should write iomp5 in Eclipse?

MKL vs Eclipse

e_ustimenko — Thu, 03 Feb 2011 12:36:20 GMT

Let's I write my setting step by step, and u will correct my acts.

1. Go toC/C++ General>Paths and Symbols>Includesand set the Intel Math Kernel Library (Intel MKL) include path, that is, /home/evgeny/Soft/IntelParallelStudio/mkl/include

2.Go toC/C++ Build>Settings>Tool Settings, and add to Additional Libraries(-l) three libraries:

- /home/evgeny/Soft/IntelParallelStudio/mkl/lib/ia32/libmkl_intel.a
- /home/evgeny/Soft/IntelParallelStudio/mkl/lib/ia32/libmkl_intel_thread.a
- /home/evgeny/Soft/IntelParallelStudio/mkl/lib/ia32/libmkl_core.a

3. Then add to Search Directory for libraries(-L)/home/evgeny/Soft/IntelParallelStudio/mkl/lib/ia32

After that I don't understand, what I should do next step.

MKL vs Eclipse

Dmitry_B_Intel — Thu, 03 Feb 2011 13:30:32 GMT

I don't have an installation of Eclipse that I could use follow your steps.

In the "Additional libraries (-l)" you should add this, instead of what you shown:
mkl_intel
mkl_intel_thread
mkl_core

Here you could also add iomp5

The "Library search directory (-L)" looks set correctly. You should probably also add the path to compiler libraries here as well:
/home/evgeny/Soft/IntelParallelStudio/compiler/lib/ia32
or
/home/evgeny/Soft/IntelParallelStudio/lib/ia32

Alternatively, ifIntel compiler is used as linker, then adding linker options -mkl and -openmp should do the work. The former adds necessary libraries and locates them in proper places of your installation of Parallel Studio. The latter one does the same with repect to OpenMP runtime (i.e. iomp5).

Dima

MKL vs Eclipse

e_ustimenko — Fri, 04 Feb 2011 11:05:58 GMT

Thank u for an answer, but I have an error, when try to run the application.

error while loading shared libraries: libiomp5.so: cannot open shared object file: No such file or directory

I try change directories, where found thelibiomp5.so, but it isn't helpfull.

MKL vs Eclipse

Gennady_F_Intel — Fri, 04 Feb 2011 16:22:40 GMT

please add this dir to the LD_LIBRARY_PATH

MKL vs Eclipse

e_ustimenko — Sat, 05 Feb 2011 14:46:49 GMT

What is the LD_LIBRARY_PATH? Where I should find it, because in my file system I haven't that file.

MKL vs Eclipse

timintel — Sat, 05 Feb 2011 20:14:51 GMT

LD_LIBRARY_PATH environment variable is set correctly for the OpenMP library by source'ing the compilervars script with current Intel compiler installations, or the mklvars script in some past versions of MKL.
It's the usual method in Unix-like systems for adding paths to search for shared libraries; the ldconfig method may be available as an alternative.

MKL vs Eclipse

e_ustimenko — Sun, 06 Feb 2011 11:31:33 GMT

I try to write in console "source LD_LIBRARY_PATH /home/evgeny/Soft/IntelParallelStudio/lib/ia32" and I see

bash:LD_LIBRARY_PATH: No such file or directory

MKL vs Eclipse

timintel — Sun, 06 Feb 2011 13:00:40 GMT

If you don't want to source a provided script, such as the compilervars.sh script in the current releases, you simply put the path in LD_LIBRARY_PATH e.g.:
export LD_LIBRARY_PATH=/home/evgeny/Soft/IntelParallelStudio/lib/ia32
If that's the directory where your .so resides, and you use an sh compatible shell.

MKL vs Eclipse

mecej4 — Sun, 06 Feb 2011 13:24:22 GMT

LD_LIBRARY_PATH is not a file; it is an environment variable that must be set properly for executables produced by the Intel compiler to work properly. Please type the command (do not type the first '$' yourself; it stands for whatever the command prompt string is on your system)

$ echo $LD_LIBRARY_PATH

and report the output.

To set LD_LIBRARY_PATH to the path that you gave, the command is

$ export LD_LIBRARY_PATH=/home/evgeny/Soft/IntelParallelStudio/lib/ia32