Hello to everyone,
I am trying to figure out why my opencl program crash and it seem very strange I made these test
| |
| |
| #define TTPROGRAMDATA | __global struct TProgramData |
...
// WORK OK
int Testparseg1(TTPROGRAMDATA *ProgramData,float sprec,vec3 pos)
{
int cnt=0;
int i,ni=ProgramData->NumIstructions;//,imin;
float v,vmin;
bool fnd=false;
float MaxDistVoxel=ProgramData->VoxelData.VoxelRadius*2.0f;
float vraddia=ProgramData->VoxelData.VoxelRadius;
i=0;
while (i<ni&&(!fnd))
{
v=vTooltball( ProgramData,sprec,pos,&ProgramData->g1 );
if (v<=vraddia)
fnd=true;
i++;
}
if (fnd)
{
vraddia*=3.0f;
for (i=0;i<ni;i++)
{
v=vTooltball( ProgramData,sprec,pos,&ProgramData->g1 ); //ONLY 1 CALL
if (v<=vraddia)
cnt++;
}
}
return cnt;
}
// KO
int Testparseg1(TTPROGRAMDATA *ProgramData,float sprec,vec3 pos)
{
int cnt=0;
int i,ni=ProgramData->NumIstructions;//,imin;
float v,vmin;
bool fnd=false;
float MaxDistVoxel=ProgramData->VoxelData.VoxelRadius*2.0f;
float vraddia=ProgramData->VoxelData.VoxelRadius;
i=0;
while (i<ni&&(!fnd))
{
v=vTooltball( ProgramData,sprec,pos,&ProgramData->g1 );
if (v<=vraddia)
fnd=true;
i++;
}
if (fnd)
{
vraddia*=3.0f;
// ----different rows---
i=0;
v=vTooltball( ProgramData,sprec,pos,&ProgramData->g1 );
if (v<=vraddia)
cnt++;
//-----------------------------
for (i=1;i<ni;i++)
{
v=vTooltball( ProgramData,sprec,pos,&ProgramData->g1 );
if (v<=vraddia)
cnt++;
}
}
return cnt;
}
...
__kernel void Build_testg1(__constant struct TInputData *InputData,TTPROGRAMDATA *ProgramData,
TVOXELSPTR Voxels)
{
int iVoxel=get_global_id(0);
#ifdef _DEBUG
if (iVoxel>=MAXNUMVOXELS)
return ;
#endif
float3 vp=GetVoxelPnt(ProgramData,iVoxel);
Voxels[iVoxel].ListPtr=Testparseg1(ProgramData,InputData->ExtSPrec,vp);
}
The function Testparseg1 work and the only difference from the second one is an external call before the for cycle.
Both the function works when ProgramData->NumIstructions < 2000 , when the for have less than about 2000 cycles.
Suggestion ?
Thank you,
Denis.
Messaggio modificato da Denis A.
In attach there is an example of crashing driver program .
The sample is build using Visual Studio 2010 .
Into the folder bin there is a precompiled version with all the files required by the sample.
To compile the project you need boost 1.55 and glm 0.9.4.6 .
I Hope this can help to discover where the problem is .
Thank you ,
Denis.
