How correctly to use Parallel Inspector?

max-divulskiy — Wed, 02 Jun 2010 09:45:51 GMT

Good afternoon.

Can You prompting why Parallel Inspector shows memory leak in a following example?

[bash]#include "stdafx.h"
#include 
#include 
#include 

class SimpleSum 
{
	float* my_a;

public:

	float sum;
	
	void operator( )( const tbb::blocked_range& r )
	{
		float *a = my_a;

		for( size_t i=r.begin(); i!=r.end( ); ++i )
			sum += a;
	}

	SimpleSum( SimpleSum& x, tbb::split ) : my_a(x.my_a), sum(0) {}

	void join( const SimpleSum& y )
	{
		sum += y.sum;
	}
	
	SimpleSum(float a[] ) :
	my_a	(a), 
	sum		(0)
	{
	}
};

int _tmain(int argc, _TCHAR* argv[])
{
	UINT	Size = 1000;
	float*	Mass = (float*) _aligned_malloc(Size * sizeof(float), 16 );

	for (UINT i = 0; i < Size; i++)
	{
		Mass = (float) i;
	}

	SimpleSum sf( Mass );

	parallel_reduce( tbb::blocked_range(0, Size), sf );

	printf("Result: %f\n", sf.sum);

	_aligned_free( Mass );

	return 0;
}

Errors (level mi4):

ID  Problem Sources Modules Object Size State
P1  Memory leak parallel_reduce.h TBB_reduce.exe 140 Not fixed
P2  Memory leak parallel_reduce.h TBB_reduce.exe 40 Not fixed
P3  Memory leak parallel_reduce.h TBB_reduce.exe 40 Not fixed
P4  Memory leak parallel_reduce.h TBB_reduce.exe 40 Not fixed
P5  Memory leak parallel_reduce.h TBB_reduce.exe 140 Not fixed
P6  Memory leak parallel_reduce.h TBB_reduce.exe 60 Not fixed
P7  Memory leak parallel_reduce.h TBB_reduce.exe 40 Not fixed
P8  Memory leak parallel_reduce.h TBB_reduce.exe 40 Not fixed
P9  Memory leak parallel_reduce.h TBB_reduce.exe 112 Not fixed
P10  Memory leak parallel_reduce.h TBB_reduce.exe 56 Not fixed
P11  Memory leak parallel_reduce.h TBB_reduce.exe 56 Not fixed
P12  Memory leak parallel_reduce.h TBB_reduce.exe 56 Not fixed
P13  Memory leak parallel_reduce.h TBB_reduce.exe 56 Not fixed
P14  Memory leak parallel_reduce.h TBB_reduce.exe 84 Not fixed
P15  Memory leak parallel_reduce.h TBB_reduce.exe 56 Not fixed
P16  Memory leak parallel_reduce.h TBB_reduce.exe 56 Not fixed
P17  Memory leak task.cpp tbb_debug.dll 28 Not fixed

[/bash]

How correctly to use Parallel Inspector?

Vladimir_T_Intel — Wed, 02 Jun 2010 11:43:41 GMT

Please, specify which version/build # of Parallel Inspector you were using.

How correctly to use Parallel Inspector?

max-divulskiy — Wed, 02 Jun 2010 17:41:19 GMT

Intel Parallel Inspector Update 2, (build 75522)

Inspector. parallel_reduce Inspector TBB- . parallel_for pipeline . . Inspector, parallel_reduce .

:
Notebook MSI GT740
Core i7 Q720
Windows 7 x64
Visual Studio 2008 v.9.0.30729 + Sp1

Inspector-, i7, .

.

How correctly to use Parallel Inspector?

Vladimir_T_Intel — Thu, 03 Jun 2010 08:07:22 GMT

Inspector'. .

, .

topic How correctly to use Parallel Inspector? in Software Archive

How correctly to use Parallel Inspector?

How correctly to use Parallel Inspector?

How correctly to use Parallel Inspector?

How correctly to use Parallel Inspector?