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bugfix and optimization of compressed sse operator

pull/1/head
Sebastian Held 2010-06-25 09:38:49 +02:00
parent ebacc62812
commit dd71ae33ae
2 changed files with 34 additions and 15 deletions
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48
FDTD/operator_sse_compressed.cpp
View File

@ -149,19 +149,40 @@ void Operator_SSE_Compressed::ShowStat() const
cout << "-----------------------------------" << endl;
}
// see http://www.informit.com/articles/article.aspx?p=710752&seqNum=6
#define INLINE inline extern __attribute__((always_inline))
INLINE int equal(f4vector v1, f4vector v2)
{
#if defined(__SSE__)
v4sf compare = __builtin_ia32_cmpeqps( v1.v, v2.v ); // hmm should return v4si...
return __builtin_ia32_movmskps( compare ) == 0x0f;
#else
return (
v1.f[0] == v2.f[0] &&
v1.f[1] == v2.f[1] &&
v1.f[2] == v2.f[2] &&
v1.f[3] == v2.f[3]
);
#endif
}
bool Operator_SSE_Compressed::CompareOperators(unsigned int pos1[3], unsigned int pos2[3])
{
// cerr << pos1[0] << " " << pos1[1] << " " << pos1[2] << endl;
for (int n=0;n<3;++n)
{
for (int m=0;m<4;++m)
{
if (f4_vv[n][pos1[0]][pos1[1]][pos1[2]].f[m] != f4_vv[n][pos2[0]][pos2[1]][pos2[2]].f[m]) return false;
if (f4_vi[n][pos1[0]][pos1[1]][pos1[2]].f[m] != f4_vi[n][pos2[0]][pos2[1]][pos2[2]].f[m]) return false;
if (f4_iv[n][pos1[0]][pos1[1]][pos1[2]].f[m] != f4_iv[n][pos2[0]][pos2[1]][pos2[2]].f[m]) return false;
if (f4_ii[n][pos1[0]][pos1[1]][pos1[2]].f[m] != f4_ii[n][pos2[0]][pos2[1]][pos2[2]].f[m]) return false;
}
if (!equal( f4_vv[n][pos1[0]][pos1[1]][pos1[2]], f4_vv[n][pos2[0]][pos2[1]][pos2[2]] )) return false;
if (!equal( f4_vi[n][pos1[0]][pos1[1]][pos1[2]], f4_vi[n][pos2[0]][pos2[1]][pos2[2]] )) return false;
if (!equal( f4_iv[n][pos1[0]][pos1[1]][pos1[2]], f4_iv[n][pos2[0]][pos2[1]][pos2[2]] )) return false;
if (!equal( f4_ii[n][pos1[0]][pos1[1]][pos1[2]], f4_ii[n][pos2[0]][pos2[1]][pos2[2]] )) return false;
// for (int m=0;m<4;++m)
// {
// if (f4_vv[n][pos1[0]][pos1[1]][pos1[2]].f[m] != f4_vv[n][pos2[0]][pos2[1]][pos2[2]].f[m]) return false;
// if (f4_vi[n][pos1[0]][pos1[1]][pos1[2]].f[m] != f4_vi[n][pos2[0]][pos2[1]][pos2[2]].f[m]) return false;
// if (f4_iv[n][pos1[0]][pos1[1]][pos1[2]].f[m] != f4_iv[n][pos2[0]][pos2[1]][pos2[2]].f[m]) return false;
// if (f4_ii[n][pos1[0]][pos1[1]][pos1[2]].f[m] != f4_ii[n][pos2[0]][pos2[1]][pos2[2]].f[m]) return false;
// }
}
return true;
}
@ -201,8 +222,8 @@ bool Operator_SSE_Compressed::CompressOperator()
if (found)
{
m_Op_index[pos[0]][pos[1]][pos[2]] = *it;
fifo.erase(it);
fifo.push_front(*it); //push already existing value to the front
fifo.erase(it);
it = fifo.end();
++it;
break;
@ -242,13 +263,10 @@ bool Operator_SSE_Compressed::CompressOperator()
for (unsigned int m=0;m<m_Op_Count;++m)
{
for (unsigned int v=0;v<4;++v)
{
f4_vv_Compressed[n][m].f[v] = f4_vv[n][index_list[0].at(m)][index_list[1].at(m)][index_list[2].at(m)].f[v];
f4_vi_Compressed[n][m].f[v] = f4_vi[n][index_list[0].at(m)][index_list[1].at(m)][index_list[2].at(m)].f[v];
f4_ii_Compressed[n][m].f[v] = f4_ii[n][index_list[0].at(m)][index_list[1].at(m)][index_list[2].at(m)].f[v];
f4_iv_Compressed[n][m].f[v] = f4_iv[n][index_list[0].at(m)][index_list[1].at(m)][index_list[2].at(m)].f[v];
}
f4_vv_Compressed[n][m].v = f4_vv[n][index_list[0].at(m)][index_list[1].at(m)][index_list[2].at(m)].v;
f4_vi_Compressed[n][m].v = f4_vi[n][index_list[0].at(m)][index_list[1].at(m)][index_list[2].at(m)].v;
f4_ii_Compressed[n][m].v = f4_ii[n][index_list[0].at(m)][index_list[1].at(m)][index_list[2].at(m)].v;
f4_iv_Compressed[n][m].v = f4_iv[n][index_list[0].at(m)][index_list[1].at(m)][index_list[2].at(m)].v;
}
}

1
tools/array_ops.h
View File

@ -34,6 +34,7 @@
using namespace std;
typedef float v4sf __attribute__ ((vector_size (16))); // vector of four single floats
typedef int v4si __attribute__ ((vector_size (4*sizeof(int)))); // vector of four single ints
union f4vector
{