HP XC System 2.x Software - Manual (Page 70)

CLDFLAGS = -static-libcxa -L$(VT_ROOT)/lib $(TLIB) -lvtunwind \
-ldwarf -lnsl -lm -lelf -lpthread
FLDFLAGS = -static-libcxa -L$(VT_ROOT)/lib $(TLIB) -lvtunwind \
-ldwarf -lnsl -lm -lelf -lpthread
In the cases where Intel compilers are used, add the -static-libcxa option to the link line.
Otherwise the following type of error will occur at run-time:
$ mpirun.mpich -np 2 ~/examples_directory/vtjacobic
~/examples_directory/vtjacobic:
error while loading shared libraries:
libcprts.so.6: cannot open shared object file:
No such file or directory
MPI Application rank 0 exited before MPI_Init() with status 127
mpirun exits with status: 127
In the above example, ~/examples_directory/vtjacobic represents the file
specification for the vtjacobic example program.
For more information, see the following:
http://support.intel.com/support/performancetools/c/linux/sb/CS-
010097.htm
5.1.2 Running a Program — Intel Trace Collector and HP-MPI
Assuming that you have built your program using the -static-libcxa option, as discussed
in Section 5.1.1, you can launch the program with the mpirun.mpich command, as shown
in the following example.
C Example — Running the vtjacobic Example Program
This example shows how to run the vtjacobic example program discussed in Section 5.1.1.
$ mpirun.mpich -np 2 ~/examples_directory/vtjacobic
~/examples_directory/vtjacobic:100 iterations
in 0.228252 secs (28.712103 MFlops), m=130 n=130 np=2 [0]
Intel Trace Collector INFO: Writing tracefile vtjacobic.stf
in ~/examples_directory/vtjacobic
mpirun exits with status: 0
In the above example, ~/examples_directory/vtjacobic represents the file
specification for the vtjacobic example program.
5.1.3 Visualizing Data — Intel Trace Analyzer and HP-MPI
The Intel Trace Analyzer is used in a straightforward manner on an HP XC system, as described
in it’s standard documentation. For more information, refer to the Intel Trace Analyzer Users
Guide. This document is located on the HP XC system at the following location:
path-name>/ITA/doc/Intel_Trace_Analyzer_Users_Guide.pdf .
5-2 Tuning Applications