Disabled external gits
This commit is contained in:
48
cs440-acg/ext/tbb/examples/task/tree_sum/Makefile.windows
Normal file
48
cs440-acg/ext/tbb/examples/task/tree_sum/Makefile.windows
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@@ -0,0 +1,48 @@
|
||||
# Copyright (c) 2005-2020 Intel Corporation
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#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
# Common Makefile that builds and runs example.
|
||||
|
||||
# Just specify your program basename
|
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PROG=Tree_sum
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ARGS=
|
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PERF_RUN_ARGS=auto 100000000 silent
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||||
|
||||
# Trying to find if icl.exe is set
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||||
CXX1 = $(TBB_CXX)-
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CXX2 = $(CXX1:icl.exe-=icl.exe)
|
||||
CXX = $(CXX2:-=cl.exe)
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||||
|
||||
# The C++ compiler options
|
||||
MYCXXFLAGS = /TP /EHsc /W3 /nologo /D _CONSOLE /D _MBCS /D WIN32 $(CXXFLAGS)
|
||||
MYLDFLAGS =/INCREMENTAL:NO /NOLOGO /DEBUG /FIXED:NO $(LDFLAGS)
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||||
|
||||
all: release test
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||||
release: compiler_check
|
||||
$(CXX) *.cpp /MD /O2 /D NDEBUG $(MYCXXFLAGS) /link tbbmalloc.lib tbb.lib $(LIBS) $(MYLDFLAGS) /OUT:$(PROG).exe
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||||
debug: compiler_check
|
||||
$(CXX) *.cpp /MDd /Od /Zi /D TBB_USE_DEBUG /D _DEBUG $(MYCXXFLAGS) /link tbbmalloc_debug.lib tbb_debug.lib $(LIBS) $(MYLDFLAGS) /OUT:$(PROG).exe
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||||
clean:
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||||
@cmd.exe /C del $(PROG).exe *.obj *.?db *.manifest
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test:
|
||||
$(PROG) $(ARGS)
|
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$(PROG) stdmalloc $(ARGS)
|
||||
perf_build: release
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||||
|
||||
perf_run:
|
||||
$(PROG) $(PERF_RUN_ARGS)
|
||||
|
||||
compiler_check:
|
||||
@echo compiler_test>compiler_test && @$(CXX) /E compiler_test >nul 2>&1 || echo "$(CXX) command not found. Check if CXX=$(CXX) is set properly"
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@cmd.exe /C del compiler_test
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||||
@@ -0,0 +1,65 @@
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||||
/*
|
||||
Copyright (c) 2005-2020 Intel Corporation
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
|
||||
|
||||
#include "common.h"
|
||||
#include "tbb/task.h"
|
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|
||||
class OptimizedSumTask: public tbb::task {
|
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Value* const sum;
|
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TreeNode* root;
|
||||
bool is_continuation;
|
||||
Value x, y;
|
||||
public:
|
||||
OptimizedSumTask( TreeNode* root_, Value* sum_ ) : root(root_), sum(sum_), is_continuation(false) {
|
||||
}
|
||||
tbb::task* execute() /*override*/ {
|
||||
tbb::task* next = NULL;
|
||||
if( !is_continuation ) {
|
||||
if( root->node_count<1000 ) {
|
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*sum = SerialSumTree(root);
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} else {
|
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// Create tasks before spawning any of them.
|
||||
tbb::task* a = NULL;
|
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tbb::task* b = NULL;
|
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if( root->left )
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a = new( allocate_child() ) OptimizedSumTask(root->left,&x);
|
||||
if( root->right )
|
||||
b = new( allocate_child() ) OptimizedSumTask(root->right,&y);
|
||||
recycle_as_continuation();
|
||||
is_continuation = true;
|
||||
set_ref_count( (a!=NULL)+(b!=NULL) );
|
||||
if( a ) {
|
||||
if( b ) spawn(*b);
|
||||
} else
|
||||
a = b;
|
||||
next = a;
|
||||
}
|
||||
} else {
|
||||
*sum = root->value;
|
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if( root->left ) *sum += x;
|
||||
if( root->right ) *sum += y;
|
||||
}
|
||||
return next;
|
||||
}
|
||||
};
|
||||
|
||||
Value OptimizedParallelSumTree( TreeNode* root ) {
|
||||
Value sum;
|
||||
OptimizedSumTask& a = *new(tbb::task::allocate_root()) OptimizedSumTask(root,&sum);
|
||||
tbb::task::spawn_root_and_wait(a);
|
||||
return sum;
|
||||
}
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||||
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||||
26
cs440-acg/ext/tbb/examples/task/tree_sum/SerialSumTree.cpp
Normal file
26
cs440-acg/ext/tbb/examples/task/tree_sum/SerialSumTree.cpp
Normal file
@@ -0,0 +1,26 @@
|
||||
/*
|
||||
Copyright (c) 2005-2020 Intel Corporation
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
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||||
|
||||
#include "common.h"
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||||
|
||||
Value SerialSumTree( TreeNode* root ) {
|
||||
Value result = root->value;
|
||||
if( root->left )
|
||||
result += SerialSumTree(root->left);
|
||||
if( root->right )
|
||||
result += SerialSumTree(root->right);
|
||||
return result;
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||||
}
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||||
@@ -0,0 +1,58 @@
|
||||
/*
|
||||
Copyright (c) 2005-2020 Intel Corporation
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
|
||||
|
||||
#include "common.h"
|
||||
#include "tbb/task.h"
|
||||
|
||||
class SimpleSumTask: public tbb::task {
|
||||
Value* const sum;
|
||||
TreeNode* root;
|
||||
public:
|
||||
SimpleSumTask( TreeNode* root_, Value* sum_ ) : root(root_), sum(sum_) {}
|
||||
task* execute() /*override*/ {
|
||||
if( root->node_count<1000 ) {
|
||||
*sum = SerialSumTree(root);
|
||||
} else {
|
||||
Value x, y;
|
||||
int count = 1;
|
||||
tbb::task_list list;
|
||||
if( root->left ) {
|
||||
++count;
|
||||
list.push_back( *new( allocate_child() ) SimpleSumTask(root->left,&x) );
|
||||
}
|
||||
if( root->right ) {
|
||||
++count;
|
||||
list.push_back( *new( allocate_child() ) SimpleSumTask(root->right,&y) );
|
||||
}
|
||||
// Argument to set_ref_count is one more than size of the list,
|
||||
// because spawn_and_wait_for_all expects an augmented ref_count.
|
||||
set_ref_count(count);
|
||||
spawn_and_wait_for_all(list);
|
||||
*sum = root->value;
|
||||
if( root->left ) *sum += x;
|
||||
if( root->right ) *sum += y;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
};
|
||||
|
||||
Value SimpleParallelSumTree( TreeNode* root ) {
|
||||
Value sum;
|
||||
SimpleSumTask& a = *new(tbb::task::allocate_root()) SimpleSumTask(root,&sum);
|
||||
tbb::task::spawn_root_and_wait(a);
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||||
return sum;
|
||||
}
|
||||
|
||||
112
cs440-acg/ext/tbb/examples/task/tree_sum/TreeMaker.h
Normal file
112
cs440-acg/ext/tbb/examples/task/tree_sum/TreeMaker.h
Normal file
@@ -0,0 +1,112 @@
|
||||
/*
|
||||
Copyright (c) 2005-2020 Intel Corporation
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef TREE_MAKER_H_
|
||||
#define TREE_MAKER_H_
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||||
|
||||
#include "tbb/tick_count.h"
|
||||
#include "tbb/task.h"
|
||||
|
||||
static double Pi = 3.14159265358979;
|
||||
|
||||
const bool tbbmalloc = true;
|
||||
const bool stdmalloc = false;
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||||
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||||
template<bool use_tbbmalloc>
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||||
class TreeMaker {
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||||
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||||
class SubTreeCreationTask: public tbb::task {
|
||||
TreeNode*& my_root;
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||||
bool is_continuation;
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||||
typedef TreeMaker<use_tbbmalloc> MyTreeMaker;
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||||
|
||||
public:
|
||||
SubTreeCreationTask( TreeNode*& root, long number_of_nodes ) : my_root(root), is_continuation(false) {
|
||||
my_root = MyTreeMaker::allocate_node();
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||||
my_root->node_count = number_of_nodes;
|
||||
my_root->value = Value(Pi*number_of_nodes);
|
||||
}
|
||||
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||||
tbb::task* execute() /*override*/ {
|
||||
tbb::task* next = NULL;
|
||||
if( !is_continuation ) {
|
||||
long subtree_size = my_root->node_count - 1;
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||||
if( subtree_size<1000 ) { /* grainsize */
|
||||
my_root->left = MyTreeMaker::do_in_one_thread(subtree_size/2);
|
||||
my_root->right = MyTreeMaker::do_in_one_thread(subtree_size - subtree_size/2);
|
||||
} else {
|
||||
// Create tasks before spawning any of them.
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||||
tbb::task* a = new( allocate_child() ) SubTreeCreationTask(my_root->left,subtree_size/2);
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||||
tbb::task* b = new( allocate_child() ) SubTreeCreationTask(my_root->right,subtree_size - subtree_size/2);
|
||||
recycle_as_continuation();
|
||||
is_continuation = true;
|
||||
set_ref_count(2);
|
||||
spawn(*b);
|
||||
next = a;
|
||||
}
|
||||
}
|
||||
return next;
|
||||
}
|
||||
};
|
||||
|
||||
public:
|
||||
static TreeNode* allocate_node() {
|
||||
return use_tbbmalloc? tbb::scalable_allocator<TreeNode>().allocate(1) : new TreeNode;
|
||||
}
|
||||
|
||||
static TreeNode* do_in_one_thread( long number_of_nodes ) {
|
||||
if( number_of_nodes==0 ) {
|
||||
return NULL;
|
||||
} else {
|
||||
TreeNode* n = allocate_node();
|
||||
n->node_count = number_of_nodes;
|
||||
n->value = Value(Pi*number_of_nodes);
|
||||
--number_of_nodes;
|
||||
n->left = do_in_one_thread( number_of_nodes/2 );
|
||||
n->right = do_in_one_thread( number_of_nodes - number_of_nodes/2 );
|
||||
return n;
|
||||
}
|
||||
}
|
||||
|
||||
static TreeNode* do_in_parallel( long number_of_nodes ) {
|
||||
TreeNode* root_node;
|
||||
SubTreeCreationTask& a = *new(tbb::task::allocate_root()) SubTreeCreationTask(root_node, number_of_nodes);
|
||||
tbb::task::spawn_root_and_wait(a);
|
||||
return root_node;
|
||||
}
|
||||
|
||||
static TreeNode* create_and_time( long number_of_nodes, bool silent=false ) {
|
||||
tbb::tick_count t0, t1;
|
||||
TreeNode* root = allocate_node();
|
||||
root->node_count = number_of_nodes;
|
||||
root->value = Value(Pi*number_of_nodes);
|
||||
--number_of_nodes;
|
||||
|
||||
t0 = tbb::tick_count::now();
|
||||
root->left = do_in_one_thread( number_of_nodes/2 );
|
||||
t1 = tbb::tick_count::now();
|
||||
if ( !silent ) printf ("%24s: time = %.1f msec\n", "half created serially", (t1-t0).seconds()*1000);
|
||||
|
||||
t0 = tbb::tick_count::now();
|
||||
root->right = do_in_parallel( number_of_nodes - number_of_nodes/2 );
|
||||
t1 = tbb::tick_count::now();
|
||||
if ( !silent ) printf ("%24s: time = %.1f msec\n", "half done in parallel", (t1-t0).seconds()*1000);
|
||||
|
||||
return root;
|
||||
}
|
||||
};
|
||||
|
||||
#endif // TREE_MAKER_H_
|
||||
32
cs440-acg/ext/tbb/examples/task/tree_sum/common.h
Normal file
32
cs440-acg/ext/tbb/examples/task/tree_sum/common.h
Normal file
@@ -0,0 +1,32 @@
|
||||
/*
|
||||
Copyright (c) 2005-2020 Intel Corporation
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
|
||||
|
||||
typedef float Value;
|
||||
|
||||
struct TreeNode {
|
||||
//! Pointer to left subtree
|
||||
TreeNode* left;
|
||||
//! Pointer to right subtree
|
||||
TreeNode* right;
|
||||
//! Number of nodes in this subtree, including this node.
|
||||
long node_count;
|
||||
//! Value associated with the node.
|
||||
Value value;
|
||||
};
|
||||
|
||||
Value SerialSumTree( TreeNode* root );
|
||||
Value SimpleParallelSumTree( TreeNode* root );
|
||||
Value OptimizedParallelSumTree( TreeNode* root );
|
||||
105
cs440-acg/ext/tbb/examples/task/tree_sum/main.cpp
Normal file
105
cs440-acg/ext/tbb/examples/task/tree_sum/main.cpp
Normal file
@@ -0,0 +1,105 @@
|
||||
/*
|
||||
Copyright (c) 2005-2020 Intel Corporation
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
|
||||
|
||||
#include "common.h"
|
||||
|
||||
#include <cstdlib>
|
||||
#include <cstdio>
|
||||
#include <cstring>
|
||||
|
||||
// The performance of this example can be significantly better when
|
||||
// the objects are allocated by the scalable_allocator instead of the
|
||||
// default "operator new". The reason is that the scalable_allocator
|
||||
// typically packs small objects more tightly than the default "operator new",
|
||||
// resulting in a smaller memory footprint, and thus more efficient use of
|
||||
// cache and virtual memory. Also the scalable_allocator works faster for
|
||||
// multi-threaded allocations.
|
||||
//
|
||||
// Pass stdmalloc as the 1st command line parameter to use the default "operator new"
|
||||
// and see the performance difference.
|
||||
#include "tbb/scalable_allocator.h"
|
||||
#include "tbb/global_control.h"
|
||||
#include "TreeMaker.h"
|
||||
#include "tbb/tick_count.h"
|
||||
|
||||
#include "../../common/utility/utility.h"
|
||||
#include "../../common/utility/get_default_num_threads.h"
|
||||
|
||||
using namespace std;
|
||||
|
||||
void Run( const char* which, Value(*SumTree)(TreeNode*), TreeNode* root, bool silent) {
|
||||
tbb::tick_count t0;
|
||||
if ( !silent ) t0 = tbb::tick_count::now();
|
||||
Value result = SumTree(root);
|
||||
if ( !silent ) printf ("%24s: time = %.1f msec, sum=%g\n", which, (tbb::tick_count::now()-t0).seconds()*1000, result);
|
||||
}
|
||||
|
||||
int main( int argc, const char *argv[] ) {
|
||||
try{
|
||||
tbb::tick_count mainStartTime = tbb::tick_count::now();
|
||||
|
||||
// The 1st argument is the function to obtain 'auto' value; the 2nd is the default value
|
||||
// The example interprets 0 threads as "run serially, then fully subscribed"
|
||||
utility::thread_number_range threads( utility::get_default_num_threads, 0 );
|
||||
long number_of_nodes = 10000000;
|
||||
bool silent = false;
|
||||
bool use_stdmalloc = false;
|
||||
|
||||
utility::parse_cli_arguments(argc,argv,
|
||||
utility::cli_argument_pack()
|
||||
//"-h" option for displaying help is present implicitly
|
||||
.positional_arg(threads,"n-of-threads",utility::thread_number_range_desc)
|
||||
.positional_arg(number_of_nodes,"number-of-nodes","the number of nodes")
|
||||
.arg(silent,"silent","no output except elapsed time")
|
||||
.arg(use_stdmalloc,"stdmalloc","use standard allocator")
|
||||
);
|
||||
|
||||
TreeNode* root;
|
||||
{ // In this scope, TBB will use default number of threads for tree creation
|
||||
tbb::global_control c(tbb::global_control::max_allowed_parallelism, utility::get_default_num_threads());
|
||||
|
||||
if( use_stdmalloc ) {
|
||||
if ( !silent ) printf("Tree creation using standard operator new\n");
|
||||
root = TreeMaker<stdmalloc>::create_and_time( number_of_nodes, silent );
|
||||
} else {
|
||||
if ( !silent ) printf("Tree creation using TBB scalable allocator\n");
|
||||
root = TreeMaker<tbbmalloc>::create_and_time( number_of_nodes, silent );
|
||||
}
|
||||
}
|
||||
|
||||
// Warm up caches
|
||||
SerialSumTree(root);
|
||||
if ( !silent ) printf("Calculations:\n");
|
||||
if ( threads.first ) {
|
||||
for(int p = threads.first; p <= threads.last; p = threads.step(p) ) {
|
||||
if ( !silent ) printf("threads = %d\n", p );
|
||||
tbb::global_control c(tbb::global_control::max_allowed_parallelism, p);
|
||||
Run ( "SimpleParallelSumTree", SimpleParallelSumTree, root, silent );
|
||||
Run ( "OptimizedParallelSumTree", OptimizedParallelSumTree, root, silent );
|
||||
}
|
||||
} else { // Number of threads wasn't set explicitly. Run serial and two parallel versions
|
||||
Run ( "SerialSumTree", SerialSumTree, root, silent );
|
||||
tbb::global_control c(tbb::global_control::max_allowed_parallelism, utility::get_default_num_threads());
|
||||
Run ( "SimpleParallelSumTree", SimpleParallelSumTree, root, silent );
|
||||
Run ( "OptimizedParallelSumTree", OptimizedParallelSumTree, root, silent );
|
||||
}
|
||||
utility::report_elapsed_time((tbb::tick_count::now() - mainStartTime).seconds());
|
||||
return 0;
|
||||
}catch(std::exception& e){
|
||||
std::cerr<<"error occurred. error text is :\"" <<e.what()<<"\"\n";
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
423
cs440-acg/ext/tbb/examples/task/tree_sum/readme.html
Normal file
423
cs440-acg/ext/tbb/examples/task/tree_sum/readme.html
Normal file
@@ -0,0 +1,423 @@
|
||||
<!DOCTYPE html>
|
||||
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||||
<head>
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<style>
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||||
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|
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|
||||
}
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|
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|
||||
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|
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
}
|
||||
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|
||||
/* Div for banner */
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
/* Add as class to H1 in banner */
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
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|
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|
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|
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|
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|
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||||
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|
||||
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|
||||
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|
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|
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|
||||
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|
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|
||||
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|
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|
||||
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|
||||
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|
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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||||
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|
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||||
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||||
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||||
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|
||||
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|
||||
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||||
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||||
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||||
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||||
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|
||||
}
|
||||
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||||
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|
||||
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|
||||
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||||
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||||
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|
||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
.compiler {
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
.note {
|
||||
font-size:small;
|
||||
font-style: italic;
|
||||
}
|
||||
</style>
|
||||
<title>Intel® Threading Building Blocks. Tree_sum sample</title>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<div id="banner">
|
||||
<img class="logo" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEMAAAAsCAYAAAA+aAX8AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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|
||||
9Or1LzUmVVz+HJXDAAAAAElFTkSuQmCC">
|
||||
<h1 class="title">Intel® Threading Building Blocks.<br>Tree_sum sample</h1>
|
||||
</div>
|
||||
|
||||
<p>
|
||||
This directory contains a simple example that sums values in a tree.
|
||||
<br><br>
|
||||
The example exhibits some speedup, but not a lot, because it quickly saturates
|
||||
the system bus on a multiprocessor. For good speedup, there needs to be
|
||||
more computation cycles per memory reference. The point of the example
|
||||
is to teach how to use the raw task interface, so the computation is
|
||||
deliberately trivial.
|
||||
<br><br>
|
||||
The performance of this example is better when objects are allocated
|
||||
by the scalable_allocator instead of
|
||||
the default "operator new". The reason is that the scalable_allocator typically
|
||||
packs small objects more tightly than the default "operator new", resulting in
|
||||
a smaller memory footprint, and thus more efficient use of cache and virtual memory.
|
||||
In addition, the scalable_allocator performs better for multi-threaded allocations.
|
||||
</p>
|
||||
|
||||
<div class="changes">
|
||||
<div class="h3-alike">System Requirements</div>
|
||||
<input type="checkbox">
|
||||
<div class="show-hide">
|
||||
<p>
|
||||
For the most up to date system requirements, see the <a href="http://software.intel.com/en-us/articles/intel-threading-building-blocks-release-notes">release notes.</a>
|
||||
</p>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="changes">
|
||||
<div class="h3-alike">Files</div>
|
||||
<input type="checkbox" checked="checked">
|
||||
<div class="show-hide">
|
||||
<dl>
|
||||
<dt><a href="SerialSumTree.cpp">SerialSumTree.cpp</a>
|
||||
<dd>Sums sequentially.
|
||||
<dt><a href="SimpleParallelSumTree.cpp">SimpleParallelSumTree.cpp</a><dt>
|
||||
<dd>Sums in parallel without any fancy tricks.
|
||||
<dt><a href="OptimizedParallelSumTree.cpp">OptimizedParallelSumTree.cpp</a><dt>
|
||||
<dd>Sums in parallel, using "recycling" and "continuation-passing" tricks.
|
||||
In this case, it is only slightly faster than the simple version.
|
||||
<dt><a href="common.h">common.h</a>
|
||||
<dd>Shared declarations.
|
||||
<dt><a href="main.cpp">main.cpp</a>
|
||||
<dd>Main program which parses command line options and runs the algorithm.
|
||||
<dt><a href="Makefile">Makefile</a>
|
||||
<dd>Makefile for building the example.
|
||||
</dl>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="changes">
|
||||
<div class="h3-alike">Directories</div>
|
||||
<input type="checkbox" checked="checked">
|
||||
<div class="show-hide">
|
||||
<dl>
|
||||
<dt><a href="msvs/">msvs</a>
|
||||
<dd>Contains Microsoft* Visual Studio* workspace for building and running the example (Windows* systems only).
|
||||
<dt><a href="xcode/">xcode</a>
|
||||
<dd>Contains Xcode* IDE workspace for building and running the example (macOS* systems only).
|
||||
</dl>
|
||||
<p>For information about the minimum supported version of IDE, see <a href="http://software.intel.com/en-us/articles/intel-threading-building-blocks-release-notes">release notes.</a></p>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="changes">
|
||||
<div class="h3-alike">Build instructions</div>
|
||||
<input type="checkbox" checked="checked">
|
||||
<div class="show-hide">
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<p>General build directions can be found <a href="../../index.html">here</a>.</p>
|
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</div>
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||||
</div>
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||||
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<div class="changes">
|
||||
<div class="h3-alike">Usage</div>
|
||||
<input type="checkbox" checked="checked">
|
||||
<div class="show-hide">
|
||||
<dl>
|
||||
<dt><tt>tree_sum <i>-h</i></tt>
|
||||
<dd>Prints the help for command line options
|
||||
<dt><tt>tree_sum [<i>n-of-threads</i>=value] [<i>number-of-nodes</i>=value] [<i>silent</i>] [<i>stdmalloc</i>]</tt>
|
||||
<dt><tt>tree_sum [<i>n-of-threads</i> [<i>number-of-nodes</i>]] [<i>silent</i>] [<i>stdmalloc</i>]</tt>
|
||||
<dd><i>n-of-threads</i> is the number of threads to use; a range of the form <i>low</i>[:<i>high</i>], where low and optional high are non-negative integers or 'auto' for the default.<br>
|
||||
<i>number-of-nodes</i> is the number of nodes in the tree.<br>
|
||||
<i>silent</i> - no output except elapsed time.<br>
|
||||
<i>stdmalloc</i> - causes the default "operator new" to be used for memory allocations instead of the scalable_allocator.<br>
|
||||
|
||||
<dt>To run a short version of this example, e.g., for use with Intel® Parallel Inspector:
|
||||
<dd>Build a <i>debug</i> version of the example
|
||||
(see the <a href="../../index.html">build instructions</a>).
|
||||
<br>Run it with a small problem size and the desired number of threads, e.g., <tt>tree_sum 4 100000</tt>.
|
||||
</dl>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<br>
|
||||
<a href="../index.html">Up to parent directory</a>
|
||||
<hr>
|
||||
<div class="changes">
|
||||
<div class="h3-alike">Legal Information</div>
|
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<input type="checkbox">
|
||||
<div class="show-hide">
|
||||
<p>
|
||||
Intel and the Intel logo are trademarks of Intel Corporation in the U.S. and/or other countries.
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<br>* Other names and brands may be claimed as the property of others.
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<br>© 2020, Intel Corporation
|
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</p>
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Reference in New Issue
Block a user