HP aC++/HP C Programmer's Guide (B3901-90036; A.06.26; September 2011)

all Enables collection of all types of profile data. This is equivalent to
+Oprofile=collect:arc,dcache,stride,loopiter. This is the
default.
This option merely enables the application for collection of the various forms of profiling
data.
The environment variable PBO_DATA_TYPE controls the type of data collected at runtime.
It may be set to one of the following values, which must be consistent with the
+Oprofile=collect qualifiers used to create the application:
arc-stride Collects stride and/or arc counts. This is the default if
PBO_DATA_TYPE is not set.
dcache Collects data cache miss metrics.
NOTE: Data cache miss metrics cannot be collected during the same run of an
application as stride and/or arc data.
Information Embedding Options
The +annotate option annotates the compiled binary with extra information.
-annotate=structs
The+annotate option annotates the compiled binary with accesses to C/C++ struct
fields for use by other external tools such as Caliper. By default, no annotations are
added.
Displaying Optimization Information
The +O[no]info option displays informational messages about the optimization process.
+O[no]info
+O[no]info
The +O[no]info option displays messages about the optimization process. This option
may be helpful in understanding what optimizations are occurring. You can use the
option at levels 0-4.
The default is +Onoinfo at levels 0-4.
Parallel Processing Options
HP aC++ provides the following optimization options for parallel code.
-mt
The -mt option enables multi-threading capability without the need to set any other flags,
such as -l and -D. HP aC++ examines your environment and automatically selects and
sets the appropriate flags. “Performance Options” (page 208).
Parallel Processing Options 79