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completed sse engine and enabled it

pull/1/head
Sebastian Held 2010-04-21 14:29:02 +02:00
parent 9e66b0e544
commit b489d3342d
5 changed files with 87 additions and 37 deletions
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81
FDTD/engine_sse.cpp
View File

@ -45,23 +45,26 @@ void Engine_sse::Init()
{
numTS = 0;
volt_ = Create_N_3DArray_v4sf(numLines);
curr = Create_N_3DArray(numLines);
curr_ = Create_N_3DArray_v4sf(numLines);
volt = 0; // not used
curr = 0; // not used
// Engine::Init(); //FIXME currently postprocessing operates on volt and curr arrays, which are not updated by this engine!!!!
}
void Engine_sse::Reset()
{
Delete_N_3DArray_v4sf(volt_,numLines);
volt=NULL;
Delete_N_3DArray(curr,numLines);
curr=NULL;
volt_ = 0;
Delete_N_3DArray_v4sf(curr_,numLines);
curr_ = 0;
}
void Engine_sse::UpdateVoltages()
{
unsigned int pos[4];
bool shift[3];
unsigned int pos[3];
bool shift[2];
f4vector temp;
//voltage updates
for (pos[0]=0;pos[0]<numLines[0];++pos[0])
{
shift[0]=pos[0];
@ -70,19 +73,25 @@ void Engine_sse::UpdateVoltages()
shift[1]=pos[1];
for (pos[2]=0;pos[2]<numLines[2]/4;++pos[2])
{
//do the updates here
//for x
// x-polarization
temp.f[0] = curr_[1][pos[0]][pos[1]][pos[2]-(bool)pos[2]].f[3];
temp.f[1] = curr_[1][pos[0]][pos[1]][pos[2]].f[0];
temp.f[2] = curr_[1][pos[0]][pos[1]][pos[2]].f[1];
temp.f[3] = curr_[1][pos[0]][pos[1]][pos[2]].f[2];
volt_[0][pos[0]][pos[1]][pos[2]].v *= Op->vv_[0][pos[0]][pos[1]][pos[2]].v;
volt_[0][pos[0]][pos[1]][pos[2]].v += Op->vi_[0][pos[0]][pos[1]][pos[2]].v * ( curr_[2][pos[0]][pos[1]][pos[2]].v - curr_[2][pos[0]][pos[1]-shift[1]][pos[2]].v - curr_[1][pos[0]][pos[1]][pos[2]].v + temp.v );
// y-polarization
temp.f[0] = curr_[0][pos[0]][pos[1]][pos[2]-(bool)pos[2]].f[3];
temp.f[1] = curr_[0][pos[0]][pos[1]][pos[2]].f[0];
temp.f[2] = curr_[0][pos[0]][pos[1]][pos[2]].f[1];
temp.f[3] = curr_[0][pos[0]][pos[1]][pos[2]].f[2];
volt_[1][pos[0]][pos[1]][pos[2]].v *= Op->vv_[1][pos[0]][pos[1]][pos[2]].v;
volt_[1][pos[0]][pos[1]][pos[2]].v += Op->vi_[1][pos[0]][pos[1]][pos[2]].v * ( curr_[0][pos[0]][pos[1]][pos[2]].v - temp.v - curr_[2][pos[0]][pos[1]][pos[2]].v + curr_[2][pos[0]-shift[0]][pos[1]][pos[2]].v);
// z-polarization
volt_[2][pos[0]][pos[1]][pos[2]].v *= Op->vv_[2][pos[0]][pos[1]][pos[2]].v;
for (pos[3]=0;pos[3]<4;++pos[3]) {
shift[2]=pos[2]+pos[3];
volt_[0][pos[0]][pos[1]][pos[2]].f[pos[3]] += Op->vi_[0][pos[0]][pos[1]][pos[2]].f[pos[3]] * ( curr[2][pos[0]][pos[1]][pos[2]] - curr[2][pos[0]][pos[1]-shift[1]][pos[2]] - curr[1][pos[0]][pos[1]][pos[2]] + curr[1][pos[0]][pos[1]][pos[2]-shift[2]]);
volt_[1][pos[0]][pos[1]][pos[2]].f[pos[3]] += Op->vi_[1][pos[0]][pos[1]][pos[2]].f[pos[3]] * ( curr[0][pos[0]][pos[1]][pos[2]] - curr[0][pos[0]][pos[1]][pos[2]-shift[2]] - curr[2][pos[0]][pos[1]][pos[2]] + curr[2][pos[0]-shift[0]][pos[1]][pos[2]]);
volt_[2][pos[0]][pos[1]][pos[2]].f[pos[3]] += Op->vi_[2][pos[0]][pos[1]][pos[2]].f[pos[3]] * ( curr[1][pos[0]][pos[1]][pos[2]] - curr[1][pos[0]-shift[0]][pos[1]][pos[2]] - curr[0][pos[0]][pos[1]][pos[2]] + curr[0][pos[0]][pos[1]-shift[1]][pos[2]]);
}
volt_[2][pos[0]][pos[1]][pos[2]].v += Op->vi_[2][pos[0]][pos[1]][pos[2]].v * ( curr_[1][pos[0]][pos[1]][pos[2]].v - curr_[1][pos[0]-shift[0]][pos[1]][pos[2]].v - curr_[0][pos[0]][pos[1]][pos[2]].v + curr_[0][pos[0]][pos[1]-shift[1]][pos[2]].v);
}
}
}
@ -91,37 +100,47 @@ void Engine_sse::UpdateVoltages()
void Engine_sse::ApplyVoltageExcite()
{
int exc_pos;
unsigned int pos;
//soft voltage excitation here (E-field excite)
for (unsigned int n=0;n<Op->E_Exc_Count;++n)
{
exc_pos = (int)numTS - (int)Op->E_Exc_delay[n];
exc_pos *= (exc_pos>0 && exc_pos<=(int)Op->ExciteLength);
// if (n==0) cerr << numTS << " => " << Op->ExciteSignal[exc_pos] << endl;
volt[Op->E_Exc_dir[n]][Op->E_Exc_index[0][n]][Op->E_Exc_index[1][n]][Op->E_Exc_index[2][n]] += Op->E_Exc_amp[n]*Op->ExciteSignal[exc_pos];
pos = Op->E_Exc_index[2][n];
volt_[Op->E_Exc_dir[n]][Op->E_Exc_index[0][n]][Op->E_Exc_index[1][n]][pos/4].f[pos%4] += Op->E_Exc_amp[n]*Op->ExciteSignal[exc_pos];
}
}
void Engine_sse::UpdateCurrents()
{
unsigned int pos[3];
unsigned int pos[5];
f4vector temp;
for (pos[0]=0;pos[0]<numLines[0]-1;++pos[0])
{
for (pos[1]=0;pos[1]<numLines[1]-1;++pos[1])
{
for (pos[2]=0;pos[2]<numLines[2]-1;++pos[2])
for (pos[2]=0;pos[2]<numLines[2]/4;++pos[2]) // FIXME is this correct?
{
//do the updates here
//for x
curr[0][pos[0]][pos[1]][pos[2]] *= Op->ii[0][pos[0]][pos[1]][pos[2]];
curr[0][pos[0]][pos[1]][pos[2]] += Op->iv[0][pos[0]][pos[1]][pos[2]] * ( volt[2][pos[0]][pos[1]][pos[2]] - volt[2][pos[0]][pos[1]+1][pos[2]] - volt[1][pos[0]][pos[1]][pos[2]] + volt[1][pos[0]][pos[1]][pos[2]+1]);
// x-pol
temp.f[0] = volt_[1][pos[0]][pos[1]][pos[2]].f[1];
temp.f[1] = volt_[1][pos[0]][pos[1]][pos[2]].f[2];
temp.f[2] = volt_[1][pos[0]][pos[1]][pos[2]].f[3];
temp.f[3] = volt_[1][pos[0]][pos[1]][pos[2]+1].f[0]; // FIXME outside sim area
curr_[0][pos[0]][pos[1]][pos[2]].v *= Op->ii_[0][pos[0]][pos[1]][pos[2]].v;
curr_[0][pos[0]][pos[1]][pos[2]].v += Op->iv_[0][pos[0]][pos[1]][pos[2]].v * ( volt_[2][pos[0]][pos[1]][pos[2]].v - volt_[2][pos[0]][pos[1]+1][pos[2]].v - volt_[1][pos[0]][pos[1]][pos[2]].v + temp.v);
//for y
curr[1][pos[0]][pos[1]][pos[2]] *= Op->ii[1][pos[0]][pos[1]][pos[2]];
curr[1][pos[0]][pos[1]][pos[2]] += Op->iv[1][pos[0]][pos[1]][pos[2]] * ( volt[0][pos[0]][pos[1]][pos[2]] - volt[0][pos[0]][pos[1]][pos[2]+1] - volt[2][pos[0]][pos[1]][pos[2]] + volt[2][pos[0]+1][pos[1]][pos[2]]);
// y-pol
temp.f[0] = volt_[0][pos[0]][pos[1]][pos[2]].f[1];
temp.f[1] = volt_[0][pos[0]][pos[1]][pos[2]].f[2];
temp.f[2] = volt_[0][pos[0]][pos[1]][pos[2]].f[3];
temp.f[3] = volt_[0][pos[0]][pos[1]][pos[2]+1].f[0]; // FIXME outside sim area
curr_[1][pos[0]][pos[1]][pos[2]].v *= Op->ii_[1][pos[0]][pos[1]][pos[2]].v;
curr_[1][pos[0]][pos[1]][pos[2]].v += Op->iv_[1][pos[0]][pos[1]][pos[2]].v * ( volt_[0][pos[0]][pos[1]][pos[2]].v - temp.v - volt_[2][pos[0]][pos[1]][pos[2]].v + volt_[2][pos[0]+1][pos[1]][pos[2]].v);
//for z
curr[2][pos[0]][pos[1]][pos[2]] *= Op->ii[2][pos[0]][pos[1]][pos[2]];
curr[2][pos[0]][pos[1]][pos[2]] += Op->iv[2][pos[0]][pos[1]][pos[2]] * ( volt[1][pos[0]][pos[1]][pos[2]] - volt[1][pos[0]+1][pos[1]][pos[2]] - volt[0][pos[0]][pos[1]][pos[2]] + volt[0][pos[0]][pos[1]+1][pos[2]]);
// z-pol
curr_[2][pos[0]][pos[1]][pos[2]].v *= Op->ii_[2][pos[0]][pos[1]][pos[2]].v;
curr_[2][pos[0]][pos[1]][pos[2]].v += Op->iv_[2][pos[0]][pos[1]][pos[2]].v * ( volt_[1][pos[0]][pos[1]][pos[2]].v - volt_[1][pos[0]+1][pos[1]][pos[2]].v - volt_[0][pos[0]][pos[1]][pos[2]].v + volt_[0][pos[0]][pos[1]+1][pos[2]].v);
}
}
}

6
FDTD/engine_sse.h
View File

@ -35,8 +35,8 @@ public:
virtual unsigned int GetNumberOfTimesteps() {return numTS;};
// virtual f4vector**** GetVoltages() {return volt;};
virtual FDTD_FLOAT**** GetCurrents() {return curr;};
inline virtual FDTD_FLOAT GetVolt( unsigned int n, unsigned int x, unsigned int y, unsigned int z ) const { return volt_[n][x][y][z/4].f[z%4]; }
inline virtual FDTD_FLOAT GetCurr( unsigned int n, unsigned int x, unsigned int y, unsigned int z ) const { return curr_[n][x][y][z/4].f[z%4]; }
protected:
Engine_sse(const Operator* op);
@ -50,7 +50,7 @@ protected:
unsigned int numLines[3];
f4vector**** volt_;
FDTD_FLOAT**** curr;
f4vector**** curr_;
unsigned int numTS;
};

32
FDTD/operator.cpp
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@ -51,6 +51,8 @@ void Operator::Init()
vi_=NULL;
iv=NULL;
ii=NULL;
iv_=NULL;
ii_=NULL;
for (int n=0;n<3;++n)
{
discLines[n]=NULL;
@ -81,6 +83,8 @@ void Operator::Reset()
Delete_N_3DArray_v4sf(vi_,numLines);
Delete_N_3DArray(iv,numLines);
Delete_N_3DArray(ii,numLines);
Delete_N_3DArray_v4sf(iv_,numLines);
Delete_N_3DArray_v4sf(ii_,numLines);
for (int n=0;n<3;++n)
{
delete[] discLines[n];
@ -510,12 +514,16 @@ void Operator::InitOperator()
Delete_N_3DArray_v4sf(vi_,numLines);
Delete_N_3DArray(iv,numLines);
Delete_N_3DArray(ii,numLines);
Delete_N_3DArray_v4sf(iv_,numLines);
Delete_N_3DArray_v4sf(ii_,numLines);
vv = Create_N_3DArray(numLines);
vi = Create_N_3DArray(numLines);
vv_ = Create_N_3DArray_v4sf(numLines);
vi_ = Create_N_3DArray_v4sf(numLines);
iv = Create_N_3DArray(numLines);
ii = Create_N_3DArray(numLines);
iv_ = Create_N_3DArray_v4sf(numLines);
ii_ = Create_N_3DArray_v4sf(numLines);
}
inline void Operator::Calc_ECOperatorPos(int n, unsigned int* pos)
@ -524,9 +532,6 @@ inline void Operator::Calc_ECOperatorPos(int n, unsigned int* pos)
vv[n][pos[0]][pos[1]][pos[2]] = (1-dT*EC_G[n][i]/2/EC_C[n][i])/(1+dT*EC_G[n][i]/2/EC_C[n][i]);
vi[n][pos[0]][pos[1]][pos[2]] = (dT/EC_C[n][i])/(1+dT*EC_G[n][i]/2/EC_C[n][i]);
vv_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = vv[n][pos[0]][pos[1]][pos[2]];
vi_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = vi[n][pos[0]][pos[1]][pos[2]];
ii[n][pos[0]][pos[1]][pos[2]] = (1-dT*EC_R[n][i]/2/EC_L[n][i])/(1+dT*EC_R[n][i]/2/EC_L[n][i]);
iv[n][pos[0]][pos[1]][pos[2]] = (dT/EC_L[n][i])/(1+dT*EC_R[n][i]/2/EC_L[n][i]);
}
@ -572,6 +577,27 @@ int Operator::CalcECOperator()
if (CalcEFieldExcitation()==false) return -1;
CalcPEC();
// copy operator to aligned memory (only for sse engine)
// FIXME this is really inefficient!
for (int n=0;n<3;++n)
{
for (pos[0]=0;pos[0]<numLines[0];++pos[0])
{
for (pos[1]=0;pos[1]<numLines[1];++pos[1])
{
for (pos[2]=0;pos[2]<numLines[2];++pos[2])
{
vv_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = vv[n][pos[0]][pos[1]][pos[2]];
vi_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = vi[n][pos[0]][pos[1]][pos[2]];
iv_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = iv[n][pos[0]][pos[1]][pos[2]];
ii_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = ii[n][pos[0]][pos[1]][pos[2]];
}
}
}
}
return 0;
}

2
FDTD/operator.h
View File

@ -147,6 +147,8 @@ public:
FDTD_FLOAT**** iv; //calc new current from old voltage
f4vector**** vv_; //calc new voltage from old voltage
f4vector**** vi_; //calc new voltage from old current
f4vector**** iv_; //calc new current from old current
f4vector**** ii_; //calc new current from old voltage
//Excitation time-signal
unsigned int ExciteLength;

3
openems.cpp
View File

@ -294,6 +294,9 @@ int openEMS::SetupFDTD(const char* file)
case EngineType_Multithreaded:
FDTD_Eng = Engine_Multithread::New(FDTD_Op,m_engine_numThreads);
break;
case EngineType_SSE:
FDTD_Eng = Engine_sse::New(FDTD_Op);
break;
default:
FDTD_Eng = Engine::New(FDTD_Op);
break;