コード例 #1
0
/* $Id: example16.c,v 2.0 2003/02/22 15:27:32 judd Exp $ */

#include<vsip.h>
#define L 20 /* A length*/
int main(){vsip_init((void*)0);
{
    vsip_vview_f*   a = vsip_vcreate_f(L,0);
    vsip_vview_f*   b = vsip_vcreate_f(L,0);
    vsip_vview_vi*  ab_vi = vsip_vcreate_vi(L,0);
    vsip_vview_bl*  ab_bl= vsip_vcreate_bl(L,0);
    int i;
    vsip_length N;
    /* make up some data */
    vsip_vramp_f(0,2 * M_PI/(L-1),a);
    vsip_vcos_f(a,b);
    /* find out where b is greater than zero */
    vsip_vfill_f(0,a);
    vsip_vlgt_f(b,a,ab_bl);
    /* find the index where b is greater than zero */
    if((N = vsip_vindexbool(ab_bl,ab_vi))){
        /* make a vector of those points where b is greater than zero*/
        vsip_vgather_f(b,ab_vi,vsip_vputlength_f(a,N));
        /*print out the results */
        printf("Index   Value\n");
        for(i=0; i<N; i++)
           printf("%li      %6.3f\n",
             vsip_vget_vi(ab_vi,i),
             vsip_vget_f(a,i));
     }   
     else{ printf("Zero Length Index");
     }   
     vsip_valldestroy_f(a);
     vsip_valldestroy_f(b);
     vsip_valldestroy_vi(ab_vi);
     vsip_valldestroy_bl(ab_bl);
     } vsip_finalize((void*)0); return 0;
}
コード例 #2
0
vsip_mview_f* VU_I_f(vsip_length M)
{
  vsip_mview_f *I = vsip_mcreate_f(M,M,VSIP_ROW,VSIP_MEM_NONE);
  if(I != NULL){
      vsip_vview_f *row = vsip_mrowview_f(I,0);
      if(row != NULL){
          vsip_vputlength_f(row,(vsip_length)(M * M));
          vsip_vfill_f((vsip_scalar_f)0.0,row);
          vsip_vputlength_f(row,M);
          vsip_vputstride_f(row,(vsip_stride) (M + 1));
          vsip_vfill_f((vsip_scalar_f)1.0,row);
          vsip_vdestroy_f(row);
      } else {
          vsip_mdestroy_f(I);
          return (vsip_mview_f*) NULL;
      }
   } else {
      return (vsip_mview_f*) NULL;
   }
   return I;
}
コード例 #3
0
ファイル: svd_f.c プロジェクト: rrjudd/jvsip
static vsip_mview_f* meye_f(vsip_length n)
{
    vsip_vview_f *d = (vsip_vview_f*) NULL;
    vsip_mview_f *retval = (vsip_mview_f*)NULL;
    retval = vsip_mcreate_f(n,n,VSIP_ROW,VSIP_MEM_NONE);
    if(retval) d = vsip_mdiagview_f(retval,0);
    if(d){
        vsip_mfill_f(0.0,retval);
        vsip_vfill_f(1.0,d);
        vsip_vdestroy_f(d);
    } else {
        vsip_malldestroy_f(retval);
        retval = (vsip_mview_f*) NULL;
    }
    return retval;
}
コード例 #4
0
ファイル: example20.c プロジェクト: rrjudd/jvsip
int VU_vfrdB_f(vsip_vview_f *a,vsip_scalar_f range)
{ int ret = 0;
  vsip_length N_len=vsip_vgetlength_f(a);
  vsip_cvview_f *ca=vsip_cvcreate_f(N_len,VSIP_MEM_NONE);
  vsip_fft_f *fft =   vsip_ccfftip_create_f(
       N_len,1,VSIP_FFT_FWD,0,0);
  vsip_vview_f *ra = vsip_vrealview_f(ca),
               *ia = vsip_vimagview_f(ca),
               *ta = vsip_vcloneview_f(a);
  vsip_offset s = (vsip_offset)vsip_vgetstride_f(ta);
  if((ca == NULL) || (fft == NULL) || (ra == NULL) ||
     (ia == NULL) || (ta == NULL)){ret =  1;
  }else{
     vsip_vfill_f(0,ia); vsip_vcopy_f_f(a,ra);
     vsip_ccfftip_f(fft,ca);
     vsip_vcmagsq_f(ca,ra);
     {  vsip_index ind;/* scale by "range" min to max*/
        vsip_scalar_f max = vsip_vmaxval_f(ra,&ind);
        vsip_scalar_f min = max * range;
        vsip_vclip_f(ra,min,max,min,max,ra);
     }
     if(N_len%2){vsip_length Nlen = N_len/2;
         vsip_vputlength_f(ta,Nlen+1);
         vsip_vputlength_f(ra,Nlen+1);
         vsip_vputoffset_f(ta,Nlen * s);
         vsip_vcopy_f_f(ra,ta);
         vsip_vputlength_f(ra,Nlen);
         vsip_vputlength_f(ta,Nlen);
         vsip_vputoffset_f(ta,vsip_vgetoffset_f(a));
         vsip_vputoffset_f(ra,Nlen+1);
         vsip_vcopy_f_f(ra,ta);
     }else{vsip_length Nlen = N_len/2;
         vsip_vcopy_f_f(ra,ta);
         vsip_vputlength_f(ta,Nlen);
         vsip_vputlength_f(a,Nlen);
         vsip_vputoffset_f(ta,(vsip_offset)(Nlen) * s);
         vsip_vswap_f(ta,a);
         vsip_vputlength_f(a,N_len);
      }vsip_vlog10_f(a,a);vsip_svmul_f(10,a,a);
   }vsip_fft_destroy_f(fft);
     vsip_vdestroy_f(ra); vsip_vdestroy_f(ia);
     vsip_cvalldestroy_f(ca);vsip_vdestroy_f(ta);
     return ret;
}
コード例 #5
0
void VU_mprodqt_f(
     vsip_mview_f *C,
     vsip_mview_f *H,
     vsip_scalar_f *beta)
{
     vsip_mattr_f attr_C,attr_C0;
     vsip_mattr_f attr_H0;
     vsip_vattr_f attr_h,attr_v0;
     vsip_vview_f *h = vsip_mcolview_f(H,0);
     vsip_length m,n;
     vsip_length j;
     vsip_stride k;
     vsip_vview_f *v, *w;
     vsip_mgetattrib_f(C,&attr_C);
     vsip_vgetattrib_f(h,&attr_h);
     vsip_mgetattrib_f(H,&attr_H0);
     attr_C0 = attr_C;
     m = attr_C.col_length;
     n = attr_C.row_length;
     v = vsip_vcreate_f(n,0);
     vsip_vgetattrib_f(v,&attr_v0);
     w = vsip_vcreate_f(m,0);
     vsip_vfill_f(0,v);
     for(k= attr_H0.row_length - 1; k >= 0; k--){
         j = (vsip_length)k;
         attr_h.offset = j * attr_H0.row_stride +
                         j * attr_H0.col_stride + attr_H0.offset;
         attr_h.length = attr_H0.col_length - j;
         vsip_vputlength_f(v,attr_h.length);
         vsip_vputoffset_f(v,n - attr_h.length);
         vsip_vputattrib_f(h,&attr_h);
         vsip_vcopy_f_f(h,v);
         vsip_vput_f(v,0,1);
         vsip_vputattrib_f(v,&attr_v0);
         VU_smvprod_f(-beta[j],C,v,w);
         VU_opu_f(C,w,v);              
     }
     printf("here 2\n");
     vsip_mputattrib_f(C,&attr_C0);
     vsip_vdestroy_f(h);
     vsip_valldestroy_f(v);
     vsip_valldestroy_f(w);
     return;
}
コード例 #6
0
int main() {  
vsip_init((void*)0);{
   vsip_mview_f *A = vsip_mcreate_f(NN,NN,VSIP_ROW,VSIP_MEM_NONE);
   vsip_mview_f *B = vsip_mcreate_f(NN,2,VSIP_COL,VSIP_MEM_NONE);
   struct tms t_buf;
   clock_t tclicks;
   vsip_lu_f *lud = vsip_lud_create_f(NN);
   printf("data fill in times 1 %lu\n",times(&t_buf));
   { int i;
      vsip_vview_f *r = vsip_mrowview_f(A,0);
      vsip_offset o = vsip_vgetoffset_f(r);
      vsip_stride s = vsip_mgetcolstride_f(A);
      for(i=0; i<NN; i++){
          vsip_vputoffset_f(r,o);
          vsip_vramp_f(i,1,r);
          o += s;
      }
      vsip_vdestroy_f(r);
   }
   { vsip_vview_f *r = vsip_mdiagview_f(A,0);
      vsip_vfill_f(0,r);
      vsip_vdestroy_f(r);
   }
   {  
      vsip_vview_f *r = vsip_mcolview_f(B,0);
      vsip_vramp_f(1,.01,r);
      vsip_vdestroy_f(r); r = vsip_mcolview_f(B,1);
      vsip_vramp_f(2,.01,r); vsip_vdestroy_f(r); 
   }
/*   printf("A = "); VU_mprintm_f("7.4",A);  */
/*   printf("B = "); VU_mprintm_f("7.4",B);  */
   printf("lud in times 2 %lu\n",(tclicks = times(&t_buf)));
   vsip_lud_f(lud,A);
   printf("lud out times 3 %lu\n",times(&t_buf) - tclicks);
/*   printf("Adec = "); VU_mprintm_f("7.4",A); */  
   printf("lusol in times 4 %lu\n",(tclicks = times(&t_buf)));
   vsip_lusol_f(lud,VSIP_MAT_NTRANS,B);
   printf("lusol out times 5 %lu\n",times(&t_buf) - tclicks);
/*   printf("B = "); VU_mprintm_f("7.4",B);   */
   } vsip_finalize((void*)0);return 0;
}
コード例 #7
0
int main(){vsip_init((void*)0);
{  int i,j; /* counters */
   vsip_vview_f *windowt = vsip_vcreate_hanning_f(Ns,0);
   vsip_vview_f *windowp = vsip_vcreate_hanning_f(Mp,0);
   vsip_vview_f *kernel = 
         vsip_vcreate_kaiser_f(Nfilter,kaiser,0);
   vsip_fir_f *fir = vsip_fir_create_f(kernel,
                         VSIP_NONSYM,2 * Nn,2,VSIP_STATE_SAVE,0,0);
   vsip_vview_f *t =vsip_vcreate_f(Ns,0); /*time vector*/
   vsip_vview_f *noise[Nnoise];
   vsip_vview_f *nv = vsip_vcreate_f(2 * Nn,0);
   vsip_vview_f *tt = vsip_vcreate_f(Ns,0); 
   vsip_mview_f *data = vsip_mcreate_f(Mp,Ns,VSIP_ROW,0),
                *rmview;
   vsip_vview_f *data_v, *gram_v;
   vsip_cvview_f *gram_data_v;
   vsip_cmview_f *gram_data = 
        vsip_cmcreate_f(Mp,Ns/2 + 1,VSIP_COL,0);
   vsip_mview_f  *gram = 
         vsip_mcreate_f(Mp,Ns/2 + 1,VSIP_ROW,0);
   vsip_mview_f  *Xim = 
         vsip_mcreate_f(Mp,Mp+1,VSIP_ROW,0);
   vsip_scalar_f alpha = (D * Fs) / c;
vsip_vview_f *m = vsip_vcreate_f(Mp,0);
   vsip_vview_f *Xi = vsip_vcreate_f(Mp + 1,0);
   vsip_randstate *state =
          vsip_randcreate(15,1,1,VSIP_PRNG);
   vsip_scalar_f w0 = 2 * M_PI * F0/Fs;
   vsip_scalar_f w1 = 2 * M_PI * F1/Fs;
   vsip_scalar_f w2 = 2 * M_PI * F2/Fs;
   vsip_scalar_f w3 = 2 * M_PI * F3/Fs;
   vsip_scalar_f cnst1 = M_PI/Nnoise;  
   vsip_offset offset0 = (vsip_offset)(alpha * Mp + 1);
   vsip_fftm_f *rcfftmop_obj = /* time fft */
   vsip_rcfftmop_create_f(Mp,Ns,1,VSIP_ROW,0,0);
   vsip_fftm_f *ccfftmip_obj =
         vsip_ccfftmip_create_f(Mp,Ns/2 +
             1,VSIP_FFT_FWD,1,VSIP_COL,0,0);
   vsip_vramp_f(0,1,m);
   vsip_vramp_f(0,M_PI/Mp,Xi); 
   vsip_vcos_f(Xi,Xi);
   vsip_vouter_f(alpha,m,Xi,Xim);
   { vsip_vview_f *gram_v = vsip_mrowview_f(gram,0);
     vsip_vputlength_f(gram_v,Mp*(Ns/2 + 1));
     vsip_vfill_f(0,gram_v);
     vsip_vdestroy_f(gram_v);
   }
   for(j=0; j<Nnoise; j++){
      noise[j] = vsip_vcreate_f(Nn,0);
      vsip_vrandn_f(state,nv);
      vsip_firflt_f(fir,nv,noise[j]);
      vsip_svmul_f(12.0/(Nnoise),noise[j],noise[j]);
      vsip_vputlength_f(noise[j],Ns);
   }
   vsip_vramp_f(0,1.0,t); /* time vector */
for(i=0; i<Mp; i++){
      vsip_scalar_f Xim_val = vsip_mget_f(Xim,i,Theta_o);
      data_v = vsip_mrowview_f(data,i);
      vsip_vsmsa_f(t,w0,-w0 * Xim_val,tt);
      vsip_vcos_f(tt,data_v); /*F0 time series */
      vsip_vsmsa_f(t,w1,-w1 * Xim_val,tt);
      vsip_vcos_f(tt,tt); /*F1 time series */
      vsip_vadd_f(tt,data_v,data_v);
      vsip_vsmsa_f(t,w2,-w2 * Xim_val,tt);
      vsip_vcos_f(tt,tt); /*F2 time series */
      vsip_vadd_f(tt,data_v,data_v);
      vsip_vsmsa_f(t,w3,-w3 * Xim_val,tt);
      vsip_vcos_f(tt,tt); /*F3 time series */
      vsip_svmul_f(3.0,tt,tt); /* scale by 3.0 */
      vsip_vadd_f(tt,data_v,data_v);
      vsip_svmul_f(3,data_v,data_v);
      for(j=0; j<Nnoise; j++){ 
          /* simple time delay beam forming for noise */
         vsip_vputoffset_f(noise[j],offset0 + 
           (int)( i * alpha * cos(j * cnst1)));
         vsip_vadd_f(noise[j],data_v,data_v); 
      } 
      /* need to destroy before going on to next phone */
      vsip_vdestroy_f(data_v);
   }
   /* window the data and the array to reduce sidelobes */
   vsip_vmmul_f(windowt,data,VSIP_ROW,data);
   vsip_vmmul_f(windowp,data,VSIP_COL,data);

   /* do ffts */
   vsip_rcfftmop_f(rcfftmop_obj,data,gram_data);
   vsip_ccfftmip_f(ccfftmip_obj,gram_data);

   { /* scale gram to db, min 0 max 255 */
      vsip_index ind;
      gram_v = vsip_mrowview_f(gram,0);
      gram_data_v = vsip_cmcolview_f(gram_data,0);
      rmview = vsip_mrealview_f(gram_data);
      vsip_vputlength_f(gram_v,Mp*(Ns/2 + 1)); 
      vsip_cvputlength_f(gram_data_v,Mp*(Ns/2 + 1));
data_v = vsip_vrealview_f(gram_data_v);
      vsip_vcmagsq_f(gram_data_v,data_v);
      vsip_mcopy_f_f(rmview,gram);
      vsip_vdestroy_f(data_v);
      vsip_svadd_f(1.0 -
      vsip_vminval_f(gram_v,&ind),gram_v,gram_v);
      vsip_vlog10_f(gram_v,gram_v); 
      vsip_svmul_f(256.0 / vsip_vmaxval_f(gram_v,&ind),
                    gram_v,gram_v);/* scale */
      /* reorganize the data to place zero in the 
          center for direction space */
      data_v = vsip_vcloneview_f(gram_v);
      vsip_vputlength_f(data_v,(Mp/2) * (Ns/2 + 1));
      vsip_vputoffset_f(data_v,(Mp/2) * (Ns/2 + 1));
      vsip_vputlength_f(gram_v,(Mp/2) * (Ns/2 + 1));
      vsip_vswap_f(data_v,gram_v);
      vsip_vdestroy_f(gram_v);
      vsip_vdestroy_f(data_v);
      vsip_cvdestroy_f(gram_data_v);
      vsip_mdestroy_f(rmview);
   }
   VU_mprintgram_f(gram,"gram_output");
   } vsip_finalize((void*)0); return 0;        
}
コード例 #8
0
ファイル: example20.c プロジェクト: rrjudd/jvsip
int main () {
vsip_init((void*)0);
{ vsip_vview_f *kernel = 
        vsip_vcreate_kaiser_f(128,15.0,VSIP_MEM_NONE);
  vsip_randstate *r_state  =
        vsip_randcreate(11,1,1,VSIP_NPRNG);
  vsip_conv1d_f *conv;
  vsip_fir_f    *fir;
  vsip_vview_f *data  = vsip_vcreate_f(
        2 * N_data,VSIP_MEM_NONE),
               *noise = vsip_vcreate_f(
        3 * N_data,VSIP_MEM_NONE),
               *avg   = vsip_vcreate_f(
        4 * N_data,VSIP_MEM_NONE);
  int i; vsip_length N_len;
  vsip_vputlength_f(data,
        (vsip_length)((N_data-1)/dec1)+1);
  vsip_vputlength_f(avg,
        (vsip_length)((N_data-1)/dec1)+1);
  vsip_vputstride_f(data,2);
  vsip_vputstride_f(avg,4);
  vsip_vputlength_f(noise,N_data); vsip_vputstride_f(noise,3);
  conv = vsip_conv1d_create_f(
        kernel,VSIP_NONSYM,
        N_data,dec1,VSIP_SUPPORT_SAME,0,0);
  fir  = vsip_fir_create_f(
        kernel,VSIP_NONSYM, N_data,dec1,VSIP_STATE_NO_SAVE,0,0);
  vsip_vfill_f(0,avg);
  for(i=0; i<10; i++){
         vsip_vrandn_f(r_state,noise);
         vsip_convolve1d_f(conv,noise,data);
         VU_vfrdB_f(data,1e-13);
         vsip_vsma_f(data,0.1,avg,avg);
  }
  N_len = vsip_vgetlength_f(avg);
  {  vsip_vview_f *x = vsip_vcreate_f(
           N_len,VSIP_MEM_NONE);
     vsip_vramp_f(-.5,1.0/(vsip_scalar_f)(N_len-1),x);
     VU_vfprintxyg_f("%8.6f %8.6f\n",x,avg,"conv_dec1");
     vsip_vdestroy_f(x);
  }
   vsip_vfill_f(0,avg);
   for(i=0; i<10; i++){
      vsip_vrandn_f(r_state,noise);
      vsip_firflt_f(fir,noise,data);
      VU_vfrdB_f(data,1e-13);
      vsip_vsma_f(data,0.1,avg,avg);
    }   
    N_len = vsip_vgetlength_f(avg);
    {  vsip_vview_f *x = vsip_vcreate_f(
             N_len,VSIP_MEM_NONE);
       vsip_vramp_f(-.5,1.0/(vsip_scalar_f)(N_len-1),x);
       VU_vfprintxyg_f("%8.6f %8.6f\n",x,avg,"fir_dec1");
       vsip_vdestroy_f(x);
    }
    vsip_conv1d_destroy_f(conv);
    vsip_fir_destroy_f(fir);
    conv = vsip_conv1d_create_f(
            kernel,VSIP_NONSYM,
            N_data,dec3,VSIP_SUPPORT_SAME,0,0);
    fir  = vsip_fir_create_f(
            kernel,VSIP_NONSYM,
            N_data,dec3,VSIP_STATE_NO_SAVE,0,0);
    vsip_vputlength_f(data,
            (vsip_length)((N_data-1)/dec3)+1);
    vsip_vputlength_f(avg,
            (vsip_length)((N_data-1)/dec3)+1);
    vsip_vfill_f(0,avg);
    for(i=0; i<10; i++){
       vsip_vrandn_f(r_state,noise);
       vsip_convolve1d_f(conv,noise,data);
       VU_vfrdB_f(data,1e-13);
       vsip_vsma_f(data,0.1,avg,avg);
    }
    N_len = vsip_vgetlength_f(avg);
    {  vsip_vview_f *x = vsip_vcreate_f(
             N_len,VSIP_MEM_NONE);
       vsip_vramp_f(-.5,1.0/(vsip_scalar_f)(N_len - 1),x);
       VU_vfprintxyg_f("%8.6f %8.6f\n",
             x, avg,"conv_dec3");
       vsip_vdestroy_f(x);
    }
   vsip_vfill_f(0,avg);
    for(i=0; i<10; i++){
        vsip_vrandn_f(r_state,noise);
        vsip_firflt_f(fir,noise,data);
        VU_vfrdB_f(data,1e-13);
        vsip_vsma_f(data,0.1,avg,avg);
     }
     N_len = vsip_vgetlength_f(avg);
     {  vsip_vview_f *x = vsip_vcreate_f(
            N_len,VSIP_MEM_NONE);
        vsip_vramp_f(-.5,1.0/(vsip_scalar_f)(N_len-1),x);
        VU_vfprintxyg_f("%8.6f %8.6f\n",
            x, avg,"fir_dec3");
        vsip_vdestroy_f(x);
     }
     N_len = vsip_vgetlength_f(kernel);
     { vsip_vview_f *x = vsip_vcreate_f(
           N_len,VSIP_MEM_NONE);
       vsip_vramp_f(0,1,x);
       VU_vfprintxyg_f("%8.6f %8.6f\n",
             x,kernel,"kaiser_window");
       vsip_vramp_f(-.5,1.0/(vsip_scalar_f)(N_len-1),x);
       VU_vfrdB_f(kernel,1e-20);
       VU_vfprintxyg_f("%8.6f %8.6f\n",
             x,kernel,"Freq_Resp_Kaiser");
       vsip_vdestroy_f(x);
     }
  vsip_randdestroy(r_state);
  vsip_valldestroy_f(kernel);
  vsip_conv1d_destroy_f(conv);vsip_fir_destroy_f(fir);
  vsip_valldestroy_f(data); vsip_valldestroy_f(noise);
  vsip_valldestroy_f(avg);
  } vsip_finalize((void*)0); return 0;
}/*end of main program *******************************/
コード例 #9
0
int main(){
   int init = vsip_init((void*)0);
   int i,j, cholsol_retval,chold_retval;
   double t0 = VU_ansi_c_clock(); /* for doing some timeing */
   vsip_cscalar_f czero = vsip_cmplx_f((vsip_scalar_f)0.0,(vsip_scalar_f)0.0);
   vsip_cmview_f *A  = vsip_cmcreate_f(N,N,VSIP_COL,0);
   vsip_cmview_f *RU  = vsip_cmcreate_f(N,N,VSIP_COL,0);
   vsip_cmview_f *RL  = vsip_cmcreate_f(N,N,VSIP_COL,0);
   vsip_cmview_f *XB  = vsip_cmcreate_f(N,M,VSIP_ROW,0);
   vsip_cchol_f* chol = vsip_cchold_create_f(UPORLO,N);   /* NOTE: UPORLO macro above main() */

   /* to make sure we have a valid Positive Symetric define */
   /* an upper triangular (RU) with positive pivots and     */
   /* zero below the main diagonal.                         */
   /* Then initialize RL with hermitian of RU               */
   /* finally create A as the matrix product of RL and RU   */

   /* Initialise matrix RU  */
   /* time this             */
   t0 = VU_ansi_c_clock();
   for (i=0; i<N; i++){
      for(j = i; j < N; j++){
         #ifdef OBNOXIOUS
         /* make up some reasonably obnoxious data                */
         vsip_scalar_f a = cos(1.5/((j+1)*(i+1)))+sqrt(i*j);
         vsip_scalar_f b = (i + j + 1) * cos(M_PI * a);
         #else
         /* the above was to obnoxious for bigger than about N = 10 */
         /* the following works for N > 100 */
         vsip_scalar_f a = 1; vsip_scalar_f b = 1; 
         #endif
         if(i == j) /* fill diagonal */
             vsip_cmput_f(RU,i,j, vsip_cmplx_f(sqrt(N) + sqrt(i),0));
         else { /* fill off diagonal */
                vsip_cmput_f(RU,i,j,vsip_cmplx_f(b,a)); 
                vsip_cmput_f(RU,j,i,czero); 
         }
      }
   }
   /* initialize RL */
   vsip_cmherm_f(RU,RL);
   #ifdef PRINT
      VU_cmprintm_f("7.4",RU);
      VU_cmprintm_f("7.4",RL);
   #endif
   printf("Matrix initialize for RU and RL = %f seconds\n",VU_ansi_c_clock() - t0);

   /* initialize A */
   /* this step will take a long time so time it */
   t0 = VU_ansi_c_clock();
   vsip_cmprod_f(RL,RU,A);
   #ifdef OBNOXIOUS
      for(i=0; i<N; i++){
         vsip_cvview_f *aview = vsip_cmrowview_f(A,i);
         vsip_cvrsdiv_f(aview,vsip_cmag_f(vsip_cvmeanval_f(aview)),aview);
         vsip_cvdestroy_f(aview);
      }
   #endif
   printf("Matrix multiply for initialization of A = %f seconds\n",VU_ansi_c_clock() - t0);

   /* print  A                                                      */
   /* we only want to do this if A is something reasonable to print */
   /* selected as an option in the make file                        */
   #ifdef PRINT
      printf("Matrix A =\n");
      VU_cmprintm_f("4.2",A);
      fflush(stdout);
   #endif

   /* initialise rhs                      */
   /* start out with XB = {1,2,3,...,M}   */
   /* calculate what B must be using A    */
   /* then solve to see if we get XB back */
   {  vsip_index i;
      vsip_vview_f *y = vsip_vcreate_f(vsip_cmgetcollength_f(A),VSIP_MEM_NONE);
      vsip_vview_f *x_r,*x_i;
      vsip_cvview_f *x;
      vsip_mview_f *A_r = vsip_mrealview_f(A),
                   *A_i = vsip_mimagview_f(A);
      /* time this */
      t0 = VU_ansi_c_clock();
      for(i=0; i<M; i++){
         vsip_vfill_f((vsip_scalar_f)i+1.0,y);
         x = vsip_cmcolview_f(XB,i);
         x_r = vsip_vrealview_f(x);
         x_i = vsip_vimagview_f(x);
         vsip_mvprod_f(A_r,y,x_r);
         vsip_mvprod_f(A_i,y,x_i);
         vsip_cvdestroy_f(x);
         vsip_vdestroy_f(x_r);
         vsip_vdestroy_f(x_i);
      }
      vsip_mdestroy_f(A_r);
      vsip_mdestroy_f(A_i);
      printf("Matrix init for B = %f seconds\n",VU_ansi_c_clock() - t0);
   }

   /* print  XB                                                      */
   /* we only want to do this if XB is something reasonable to print */
   /* selected as an option in the make file                         */
   #ifdef PRINT
      printf("Matrix B = \n");
      VU_cmprintm_f("7.4",XB);
      fflush(stdout);
   #endif

   if(chol != NULL){
      t0 = VU_ansi_c_clock(); /* we want to time the decomposition */
      chold_retval = vsip_cchold_f(chol,A);
      printf("time decomp %f\n",VU_ansi_c_clock() - t0);
      printf("decompostion returns %d\n",chold_retval);
   
      /* now do the solution */
      t0 = VU_ansi_c_clock(); /* we want to time the solution */
      cholsol_retval=vsip_ccholsol_f(chol,XB);
      printf("time solution %f\n",VU_ansi_c_clock() - t0);
      printf("cholsol returns %d\n",cholsol_retval);

      /* print  XB                                                      */
      /* we only want to do this if XB is something reasonable to print */
      /* selected as an option in the make file; otherwise              */
      /* we print a single row of XB if the matrix is to large since    */
      /* M is usally reasonable. Printed as a column vector             */
      #ifdef PRINT
         printf("Matrix X = \n");
         VU_cmprintm_f("7.4",XB);
         fflush(stdout);
      #else
         {  /* pick a row in the middle */
            vsip_cvview_f *x = vsip_cmrowview_f(XB,N/2);
            printf("This output sould be 1,2,...,M\n");
            VU_cvprintm_f("7.4",x);
            fflush(stdout);
            vsip_cvdestroy_f(x);
         }
      #endif
   } else {
         printf("failed to create cholesky object \n");
   }
   vsip_cmalldestroy_f(XB);
   vsip_cmalldestroy_f(A);
   vsip_cmalldestroy_f(RL);
   vsip_cmalldestroy_f(RU);
   vsip_cchold_destroy_f(chol);
   vsip_finalize((void*)0);
   return 1;
}