Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F83598793
TestSharedAlloc.hpp
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Wed, Sep 18, 01:03
Size
6 KB
Mime Type
text/x-c
Expires
Fri, Sep 20, 01:03 (1 d, 23 h)
Engine
blob
Format
Raw Data
Handle
20864945
Attached To
rLAMMPS lammps
TestSharedAlloc.hpp
View Options
/*
//@HEADER
// ************************************************************************
//
// Kokkos v. 2.0
// Copyright (2014) Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact H. Carter Edwards (hcedwar@sandia.gov)
//
// ************************************************************************
//@HEADER
*/
#include <gtest/gtest.h>
#include <stdexcept>
#include <sstream>
#include <iostream>
#include <Kokkos_Core.hpp>
/*--------------------------------------------------------------------------*/
namespace Test {
struct SharedAllocDestroy {
volatile int * count ;
SharedAllocDestroy() = default ;
SharedAllocDestroy( int * arg ) : count( arg ) {}
void destroy_shared_allocation()
{
Kokkos::atomic_fetch_add( count , 1 );
}
};
template< class MemorySpace , class ExecutionSpace >
void test_shared_alloc()
{
#if defined( KOKKOS_ACTIVE_EXECUTION_MEMORY_SPACE_HOST )
typedef const Kokkos::Experimental::Impl::SharedAllocationHeader Header ;
typedef Kokkos::Experimental::Impl::SharedAllocationTracker Tracker ;
typedef Kokkos::Experimental::Impl::SharedAllocationRecord< void , void > RecordBase ;
typedef Kokkos::Experimental::Impl::SharedAllocationRecord< MemorySpace , void > RecordMemS ;
typedef Kokkos::Experimental::Impl::SharedAllocationRecord< MemorySpace , SharedAllocDestroy > RecordFull ;
static_assert( sizeof(Tracker) == sizeof(int*), "SharedAllocationTracker has wrong size!" );
MemorySpace s ;
const size_t N = 1200 ;
const size_t size = 8 ;
RecordMemS * rarray[ N ];
Header * harray[ N ];
RecordMemS ** const r = rarray ;
Header ** const h = harray ;
Kokkos::RangePolicy< ExecutionSpace > range(0,N);
//----------------------------------------
{
// Since always executed on host space, leave [=]
Kokkos::parallel_for( range , [=]( size_t i ){
char name[64] ;
sprintf(name,"test_%.2d",int(i));
r[i] = RecordMemS::allocate( s , name , size * ( i + 1 ) );
h[i] = Header::get_header( r[i]->data() );
ASSERT_EQ( r[i]->use_count() , 0 );
for ( size_t j = 0 ; j < ( i / 10 ) + 1 ; ++j ) RecordBase::increment( r[i] );
ASSERT_EQ( r[i]->use_count() , ( i / 10 ) + 1 );
ASSERT_EQ( r[i] , RecordMemS::get_record( r[i]->data() ) );
});
// Sanity check for the whole set of allocation records to which this record belongs.
RecordBase::is_sane( r[0] );
// RecordMemS::print_records( std::cout , s , true );
Kokkos::parallel_for( range , [=]( size_t i ){
while ( 0 != ( r[i] = static_cast< RecordMemS *>( RecordBase::decrement( r[i] ) ) ) ) {
if ( r[i]->use_count() == 1 ) RecordBase::is_sane( r[i] );
}
});
}
//----------------------------------------
{
int destroy_count = 0 ;
SharedAllocDestroy counter( & destroy_count );
Kokkos::parallel_for( range , [=]( size_t i ){
char name[64] ;
sprintf(name,"test_%.2d",int(i));
RecordFull * rec = RecordFull::allocate( s , name , size * ( i + 1 ) );
rec->m_destroy = counter ;
r[i] = rec ;
h[i] = Header::get_header( r[i]->data() );
ASSERT_EQ( r[i]->use_count() , 0 );
for ( size_t j = 0 ; j < ( i / 10 ) + 1 ; ++j ) RecordBase::increment( r[i] );
ASSERT_EQ( r[i]->use_count() , ( i / 10 ) + 1 );
ASSERT_EQ( r[i] , RecordMemS::get_record( r[i]->data() ) );
});
RecordBase::is_sane( r[0] );
Kokkos::parallel_for( range , [=]( size_t i ){
while ( 0 != ( r[i] = static_cast< RecordMemS *>( RecordBase::decrement( r[i] ) ) ) ) {
if ( r[i]->use_count() == 1 ) RecordBase::is_sane( r[i] );
}
});
ASSERT_EQ( destroy_count , int(N) );
}
//----------------------------------------
{
int destroy_count = 0 ;
{
RecordFull * rec = RecordFull::allocate( s , "test" , size );
// ... Construction of the allocated { rec->data() , rec->size() }
// Copy destruction function object into the allocation record
rec->m_destroy = SharedAllocDestroy( & destroy_count );
ASSERT_EQ( rec->use_count() , 0 );
// Start tracking, increments the use count from 0 to 1
Tracker track ;
track.assign_allocated_record_to_uninitialized( rec );
ASSERT_EQ( rec->use_count() , 1 );
ASSERT_EQ( track.use_count() , 1 );
// Verify construction / destruction increment
for ( size_t i = 0 ; i < N ; ++i ) {
ASSERT_EQ( rec->use_count() , 1 );
{
Tracker local_tracker ;
local_tracker.assign_allocated_record_to_uninitialized( rec );
ASSERT_EQ( rec->use_count() , 2 );
ASSERT_EQ( local_tracker.use_count() , 2 );
}
ASSERT_EQ( rec->use_count() , 1 );
ASSERT_EQ( track.use_count() , 1 );
}
Kokkos::parallel_for( range , [=]( size_t i ){
Tracker local_tracker ;
local_tracker.assign_allocated_record_to_uninitialized( rec );
ASSERT_GT( rec->use_count() , 1 );
});
ASSERT_EQ( rec->use_count() , 1 );
ASSERT_EQ( track.use_count() , 1 );
// Destruction of 'track' object deallocates the 'rec' and invokes the destroy function object.
}
ASSERT_EQ( destroy_count , 1 );
}
#endif /* #if defined( KOKKOS_ACTIVE_EXECUTION_MEMORY_SPACE_HOST ) */
}
}
Event Timeline
Log In to Comment