icpc -std=c++11 -qopenmp omp_depend.cpp –o example

Set the
FGT_ROOT
variable and update your
PATH
environment variable as shown in the table below.
OS	Environment Variable	Value	Description
Linux*	FGT_ROOT	<advisor-install-dir>/fga<version>/fgt	The path to the Flow Graph Collector installation
	PATH	${FGT_ROOT}/linux/bin:${FGT_ROOT}/linux/bin/ia32/cc4.8_libc2.19_kernel3.13.0:${FGT_ROOT}/linux/bin/intel64/cc4.8_libc2.19_kernel3.13.0:${PATH}	The path must include paths to fgtrun.sh , fgtrun.csh , and fgt2xml.exe .
To enable tracing from OMPT, set the following variables:
OS	Environment Variable	Value	Description
Linux*	OMP_TOOL	Enabled	OMPT tool support enabler.
	OMP_TOOL_LIBRARIES	${FGT_ROOT}/linux/lib/intel64/cc4.8_libc2.19_kernel3.13.0/libfgt.so	Path to OpenMP collector library.
Run the application.
If your paths are set up correctly, the application generates one or more files that start with
_fgt
. There is one file per thread that participates in executing the parallelism in the application. So, for example, if two threads participate in the execution of the flow graph, running the application generates two files,
_fgt.0
and
_fgt.1
, in an autogenerated folder in the format
_fga_YYYYMMDD_HHMMSS
according to its creation (for example,
_fga_20191111_1111
).
Convert the trace files to GraphML* and TraceML* format.
Convert the
_fgt
binary files to the XML format understood by the Flow Graph Analyzer using the
fgt2xml.exe
converter in the directory containing the folder with the trace files:
fgt2xml.exe <desired_name> --omp_experimental
or
fgt2xml.exe --omp_experimental <desired_name>
or
fgt2xml.exe --omp_experimental
This converter scans the current directory for all
_fgt
files within the most recent folder according to its name and generates two output files:
<desired_name>.graphml
and
<desired_name>.traceml
. If you do not provide a
<desired_name>
, the converter creates
unknown.graphml
and
unknown.traceml
.
The
omp_experimental
flag enables displaying a subgraph and tasks dependence graph. By default, display support is disabled and you see only information related to OpenMP constructs in the per-thread traces.