jiri/LA_library
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jiri
2010-06-25 15:28:19 +00:00
parent eb0aaf9adf
commit 074c943862
13 changed files with 1938 additions and 464 deletions
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57
t.cc
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@@ -24,6 +24,7 @@
using namespace std;
using namespace LA;
extern void test(const NRVec<double> &x);
@@ -1551,7 +1552,7 @@ cout <<"Error = "<<(cx.transpose(true)*cx -bb).norm()<<endl;
}
if(1)
if(0)
{
int n;
cin >>n;
@@ -1574,5 +1575,59 @@ cout <<"Cholesky factor filling = "<<b.simplify()<<endl;
}
if(0)
{
int n;
cin >>n;
NRMat<double> a(n,n),b(n,n);
a.randomize(1.);
b.randomize(1.);
NRMat<double>c;
double t=clock()/((double) (CLOCKS_PER_SEC));
int rep=1+10000000000LL/n/n/n;
cout <<"Repetitions " <<rep<<endl;
for(int i=0; i<rep; ++i) c=a*b;
cout <<"CPU time (ms) "<<(clock()/((double) (CLOCKS_PER_SEC))-t)*1000./rep <<"\n";
NRMat<double>cgpu;
a.moveto(gpu1);
b.moveto(gpu1);
t=clock()/((double) (CLOCKS_PER_SEC));
for(int i=0; i<rep; ++i) cgpu=a*b;
cout <<"GPU time (ms) "<<(clock()/((double) (CLOCKS_PER_SEC))-t)*1000./rep <<"\n";
cgpu.moveto(cpu);
cout << "Error = "<<(c-cgpu).norm()<<endl;
}
if(1)
{
int n;
cin >>n;
NRMat<double> a(n,n);
a.randomize(1.);
NRVec<double> v(n);
v.randomize(1.);
NRSMat<double> as(n);
as.randomize(1.);
NRVec<double>w = a*v;
NRVec<double>ws = as*v;
NRMat<double>c(n,n);
c=exp(a);
a.moveto(gpu1);
v.moveto(gpu1);
as.moveto(gpu1);
NRVec<double>wgpu = a*v;
NRVec<double>wsgpu = as*v;
w.moveto(gpu1);
ws.moveto(gpu1);
cout << "Error gemv = "<<(w-wgpu).norm()<<endl;
cout << "Error symv = "<<(ws-wsgpu).norm()<<endl;
NRMat<double>cgpu;
cgpu=exp(a);
c.moveto(gpu1);
cout << "Error = "<<(c-cgpu).norm()<<endl;
}
}