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/***************************************************************************
* tools/benchmarks/tpie_stack_benchmark.cpp
*
* Part of the STXXL. See http://stxxl.sourceforge.net
*
* Copyright (C) 2006 Roman Dementiev <dementiev@ira.uka.de>
*
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
**************************************************************************/
//! \example containers/tpie_stack_benchmark.cpp
//! This is a benchmark mentioned in the paper
//! R. Dementiev, L. Kettner, P. Sanders "STXXL: standard template library for XXL data sets"
//! Software: Practice and Experience
//! Volume 38, Issue 6, Pages 589-637, May 2008
//! DOI: 10.1002/spe.844
#include "app_config.h"
#include <portability.h>
#include <versions.h>
// Get the AMI_stack definition.
#include <ami_stack.h>
// Utilities for ASCII output.
#include <ami_scan_utils.h>
#include <stxxl/bits/common/utils.h>
#include <stxxl/bits/verbose.h>
#include <stxxl/timer>
#define MEM_2_RESERVE (768 * 1024 * 1024)
#define BLOCK_SIZE (2 * 1024 * 1024)
#ifndef DISKS
#define DISKS 1
#endif
template <unsigned RECORD_SIZE>
struct my_record_
{
char data[RECORD_SIZE];
my_record_() { }
};
template <class my_record>
void run_stack(stxxl::int64 volume)
{
typedef AMI_stack<my_record> stack_type;
MM_manager.set_memory_limit(BLOCK_SIZE * DISKS * 8);
STXXL_MSG("Record size: " << sizeof(my_record) << " bytes");
stack_type Stack;
stxxl::int64 ops = volume / sizeof(my_record);
stxxl::int64 i;
my_record cur;
stxxl::timer Timer;
Timer.start();
for (i = 0; i < ops; ++i)
{
Stack.push(cur);
}
Timer.stop();
STXXL_MSG("Records in Stack: " << Stack.stream_len());
if (i != Stack.stream_len())
{
STXXL_MSG("Size does not match");
abort();
}
STXXL_MSG("Insertions elapsed time: " << (Timer.mseconds() / 1000.) <<
" seconds : " << (double(volume) / (1024. * 1024. * Timer.mseconds() / 1000.)) <<
" MiB/s");
////////////////////////////////////////////////
Timer.reset();
Timer.start();
my_record* out;
for (i = 0; i < ops; ++i)
{
Stack.pop(&out);
}
Timer.stop();
STXXL_MSG("Records in Stack: " << Stack.stream_len());
if (Stack.stream_len() != 0)
{
STXXL_MSG("Stack must be empty");
abort();
}
STXXL_MSG("Deletions elapsed time: " << (Timer.mseconds() / 1000.) <<
" seconds : " << (double(volume) / (1024. * 1024. * Timer.mseconds() / 1000.)) <<
" MiB/s");
}
int main(int argc, char* argv[])
{
using std::cout;
using std::endl;
#ifdef BTE_COLLECTION_IMP_MMAP
cout << "BTE_COLLECTION_IMP_MMAP is defined" << endl;
#endif
#ifdef BTE_COLLECTION_IMP_UFS
cout << "BTE_COLLECTION_IMP_UFS is defined" << endl;
#endif
#ifdef BTE_STREAM_IMP_UFS
cout << "BTE_STREAM_IMP_UFS is defined" << endl;
cout << "BTE_STREAM_UFS_BLOCK_FACTOR is " << BTE_STREAM_UFS_BLOCK_FACTOR << endl;
cout << "Actual block size is " << (TPIE_OS_BLOCKSIZE() * BTE_STREAM_UFS_BLOCK_FACTOR / 1024) << " KiB" << endl;
#endif
#ifdef BTE_STREAM_IMP_MMAP
cout << "BTE_STREAM_IMP_MMAP is defined" << endl;
cout << "BTE_STREAM_MMAP_BLOCK_FACTOR is " << BTE_STREAM_MMAP_BLOCK_FACTOR << endl;
cout << "Actual block size is " << (TPIE_OS_BLOCKSIZE() * BTE_STREAM_MMAP_BLOCK_FACTOR / 1024) << " KiB" << endl;
#endif
#ifdef BTE_STREAM_IMP_STDIO
cout << "BTE_STREAM_IMP_STDIO is defined" << endl;
#endif
cout << "TPIE_OS_BLOCKSIZE() is " << TPIE_OS_BLOCKSIZE() << endl;
if (argc < 3)
{
STXXL_MSG("Usage: " << argv[0] << " version #volume");
STXXL_MSG("\t version = 1: TPIE stack with 4 byte records");
STXXL_MSG("\t version = 2: TPIE stack with 32 byte records");
return -1;
}
int version = atoi(argv[1]);
stxxl::int64 volume = stxxl::atoint64(argv[2]);
STXXL_MSG("Allocating array with size " << MEM_2_RESERVE
<< " bytes to prevent file buffering.");
//int * array = new int[MEM_2_RESERVE/sizeof(int)];
int* array = (int*)malloc(MEM_2_RESERVE);
std::fill(array, array + (MEM_2_RESERVE / sizeof(int)), 0);
STXXL_MSG("Running version: " << version);
STXXL_MSG("Data volume : " << volume << " bytes");
switch (version)
{
case 1:
run_stack<my_record_<4> >(volume);
break;
case 2:
run_stack<my_record_<32> >(volume);
break;
default:
STXXL_MSG("Unsupported version " << version);
}
//delete [] array;
free(array);
}
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