Parallel Programming Guide for HP-UX Systems

OpenMP

From HP Programming Model to OpenMP

Chapter 492

Exceptions

• private(list) / loop_private(list)

OpenMP allows the induction variable to be a member of the variable list. HPPM does

not.

• default(private|shared|none)

The HPPM defaults to “shared” and allows the user to specify which variables should be

private. The HP model does not provide “none”; therefore, undeclared variables will be

treated as shared.

!$dir begin_tasks

<see parallel and

begin_tasks(dist)

clauses>

!$OMP parallel sections

<see parallel and sections

clauses>

!$dir

critical_section[(name)]

!$OMP critical[(name)]

!$dir wait_barrier !$OMP barrier

!$dir ordered_section !$OMP ordered

<none> !$OMP end parallel

!$dir end_tasks !$OMP end sections

!$dir end_tasks !$OMP end parallel sections

<none> !$OMP end parallel do

!$dir end_critical_secti

!$OMP end critical

!$dir end_ordered_sectio

!$OMP end ordered

<none> !$OMP end do

Table 4-2 OpenMP and HPPM Directives/Clauses (Continued)

HPPM OpenMP