/usr/include/spooles/Utilities/DV.h is in libspooles-dev 2.2-10build1.
This file is owned by root:root, with mode 0o644.
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/*--------------------------------------------------------------------*/
/*
-----------------------------------------
purpose -- to compute y[*] := y[*] + x[*]
created -- 95sep22, cca
-----------------------------------------
*/
void
DVadd (
int size,
double y[],
double x[]
) ;
/*--------------------------------------------------------------------*/
/*
-------------------------------------------------
purpose -- to compute y[*] := y[*] + alpha * x[*]
created -- 95sep22, cca
-------------------------------------------------
*/
void
DVaxpy (
int size,
double y[],
double alpha,
double x[]
) ;
/*--------------------------------------------------------------------*/
/*
---------------------------------------------------------------
purpose -- to compute y[index[*]] := y[index[*]] + alpha * x[*]
created -- 95sep22, cca
---------------------------------------------------------------
*/
void
DVaxpyi (
int size,
double y[],
int index[],
double alpha,
double x[]
) ;
/*--------------------------------------------------------------------*/
/*
-------------------------------
purpose -- to copy y[*] := x[*]
created -- 95sep22, cca
-------------------------------
*/
void
DVcopy (
int size,
double y[],
double x[]
) ;
/*--------------------------------------------------------------------*/
/*
-------------------------------------------------------
purpose -- given the pair of arrays (x1[],y1[]),
create a pair of arrays (x2[],y2[]) whose
entries are pairwise chosen from (x1[],y1[])
and whose distribution is an approximation.
return value -- the size of the (x2[],y2[]) arrays
created -- 95sep22, cca
-------------------------------------------------------
*/
int
DVcompress (
int size1,
double x1[],
double y1[],
int size2,
double x2[],
double y2[]
) ;
/*--------------------------------------------------------------------*/
/*
-----------------------------------
purpose -- to copy sum{y[*] * x[*]}
created -- 95sep22, cca
-----------------------------------
*/
double
DVdot (
int size,
double y[],
double x[]
) ;
/*--------------------------------------------------------------------*/
/*
-------------------------------------------
purpose -- to perform a indexed dot product
sum = sum_k y[index[k]]*x[k]
where y and x are real
created -- 98may02, cca
--------------------------------------------
*/
double
DVdoti (
int size,
double y[],
int index[],
double x[]
) ;
/*--------------------------------------------------------------------*/
/*
-----------------------------------------------
purpose -- to fill a double vector with a value
created -- 95sep22, cca
-----------------------------------------------
*/
void
DVfill (
int size,
double y[],
double dval
) ;
/*--------------------------------------------------------------------*/
/*
-----------------------------------------
purpose -- to print out a double vector
created -- 95sep22, cca
-----------------------------------------
*/
void
DVfprintf (
FILE *fp,
int size,
double dvec[]
) ;
/*--------------------------------------------------------------------*/
/*
-----------------------------------------------------------
purpose -- to free storage taken by a double vector.
note : dvec[] must have been returned by DVinit.
created -- 95sep22, cca
-----------------------------------------------------------
*/
void
DVfree (
double dvec[]
) ;
/*--------------------------------------------------------------------*/
/*
--------------------------------------------
purpose -- to read in a double vector
return value -- # of entries read
created -- 95sep22, cca
--------------------------------------------
*/
int
DVfscanf (
FILE *fp,
int size,
double y[]
) ;
/*--------------------------------------------------------------------*/
/*
---------------------------------------
purpose -- to gather y[*] = x[index[*]]
created -- 95sep22, cca
---------------------------------------
*/
void
DVgather (
int size,
double y[],
double x[],
int index[]
) ;
/*--------------------------------------------------------------------*/
/*
-----------------------------------------------------------------
purpose -- to gather add y[*] += x[index[*]] and zero x[index[*]]
created -- 95sep22, cca
-----------------------------------------------------------------
*/
void
DVgatherAddZero (
int size,
double y[],
double x[],
int index[]
) ;
/*--------------------------------------------------------------------*/
/*
-----------------------------------------------------
purpose -- to gather y[*] = x[index[*]] and zero x[*]
created -- 95sep22, cca
-----------------------------------------------------
*/
void
DVgatherZero (
int size,
double y[],
double x[],
int index[]
) ;
/*--------------------------------------------------------------------*/
/*
---------------------------------------------------------
purpose -- allocate a double array with size entries
and fill with value dval
return value -- a pointer to the start of the array
created : 95sep22, cca
---------------------------------------------------------
*/
double *
DVinit (
int size,
double dval
) ;
/*--------------------------------------------------------------------*/
/*
---------------------------------------------------------
purpose -- allocate a double array with size entries
return value -- a pointer to the start of the array
created : 95sep22, cca
---------------------------------------------------------
*/
double *
DVinit2 (
int size
) ;
/*--------------------------------------------------------------------*/
/*
------------------------------
purpose -- to permute a vector
y[index[*]] := y[*]
created -- 95sep22, cca
------------------------------
*/
void
DVinvPerm (
int size,
double y[],
int index[]
) ;
/*--------------------------------------------------------------------*/
/*
------------------------------------------------------
purpose -- to return the first entry of maximum value,
*ploc contains its index
created -- 95sep22, cca
------------------------------------------------------
*/
double
DVmax (
int size,
double y[],
int *ploc
) ;
/*--------------------------------------------------------------------*/
/*
---------------------------------------------------------------
purpose -- to return the first entry of maximum absolute value,
*ploc contains its index
created -- 95sep22, cca
---------------------------------------------------------------
*/
double
DVmaxabs (
int size,
double y[],
int *ploc
) ;
/*--------------------------------------------------------------------*/
/*
------------------------------------------------------
purpose -- to return the first entry of minimum value,
*ploc contains its index
created -- 95sep22, cca
------------------------------------------------------
*/
double
DVmin (
int size,
double y[],
int *ploc
) ;
/*--------------------------------------------------------------------*/
/*
---------------------------------------------------------------
purpose -- to return the first entry of minimum absolute value,
*ploc contains its index
created -- 95sep22, cca
---------------------------------------------------------------
*/
double
DVminabs (
int size,
double y[],
int *ploc
) ;
/*--------------------------------------------------------------------*/
/*
------------------------------
purpose -- to permute a vector
y[*] := y[index[*]]
created -- 95sep22, cca
------------------------------
*/
void
DVperm (
int size,
double y[],
int index[]
) ;
/*--------------------------------------------------------------------*/
/*
-------------------------------------------------------
purpose -- to fill a double vector with a ramp function
created -- 95sep22, cca
-------------------------------------------------------
*/
void
DVramp (
int size,
double y[],
double start,
double inc
) ;
/*--------------------------------------------------------------------*/
/*
-----------------------------------------
purpose -- to compute y[*] := y[*] - x[*]
created -- 95sep22, cca
-----------------------------------------
*/
void
DVsub (
int size,
double y[],
double x[]
) ;
/*--------------------------------------------------------------------*/
/*
--------------------------------------------
purpose -- to scale a double vector by alpha
created -- 95sep22, cca
--------------------------------------------
*/
void
DVscale (
int size,
double y[],
double alpha
) ;
/*--------------------------------------------------------------------*/
/*
----------------------------------------
purpose -- to scatter y[index[*]] = x[*]
created -- 95sep22, cca
----------------------------------------
*/
void
DVscatter (
int size,
double y[],
int index[],
double x[]
) ;
/*--------------------------------------------------------------------*/
/*
---------------------------------------------
purpose -- to scatter add y[index[*]] += x[*]
created -- 96aug17, cca
---------------------------------------------
*/
void
DVscatterAdd (
int size,
double y[],
int index[],
double x[]
) ;
/*--------------------------------------------------------------------*/
/*
-----------------------------------------------------------
purpose -- to scatter add y[index[*]] += x[*] and zero x[*]
created -- 95sep22, cca
-----------------------------------------------------------
*/
void
DVscatterAddZero (
int size,
double y[],
int index[],
double x[]
) ;
/*--------------------------------------------------------------------*/
/*
-----------------------------------------------------
purpose -- to scatter y[index[*]] = x[*] and zero x[*]
created -- 95sep22, cca
-----------------------------------------------------
*/
void
DVscatterZero (
int size,
double y[],
int index[],
double x[]
) ;
/*--------------------------------------------------------------------*/
/*
-----------------------------------------------
purpose -- to return the sum of a double vector
created -- 95sep22, cca
-----------------------------------------------
*/
double
DVsum (
int size,
double y[]
) ;
/*--------------------------------------------------------------------*/
/*
---------------------------------------------------
purpose -- to return the sum of the absolute values
of the entries in a double vector
created -- 95sep22, cca
---------------------------------------------------
*/
double
DVsumabs (
int size,
double y[]
) ;
/*--------------------------------------------------------------------*/
/*
--------------------------------
purpose -- to swap y[*] and x[*]
created -- 95sep22, cca
--------------------------------
*/
void
DVswap (
int size,
double y[],
double x[]
) ;
/*--------------------------------------------------------------------*/
/*
----------------------------------
purpose -- to zero a double vector
created -- 95sep22, cca
----------------------------------
*/
void
DVzero (
int size,
double y[]
) ;
/*--------------------------------------------------------------------*/
/*
-------------------------------------------------
purpose -- to permute an integer vector,
procedure uses srand48() and drand48()
input --
size -- size of the vector
y -- vector to be permuted
seed -- seed for the random number generator
if seed <= 0, simple return
created -- 95sep22, cca
-------------------------------------------------
*/
void
DVshuffle (
int size,
double y[],
int seed
) ;
/*--------------------------------------------------------------------*/
/*
---------------------------------------------------
purpose -- to scale a double vector by a 2x2 matrix
[ x ] := [ a b ] [ x ]
[ y ] [ c d ] [ y ]
created -- 98jan23, cca
---------------------------------------------------
*/
void
DVscale2 (
int size,
double x[],
double y[],
double a,
double b,
double c,
double d
) ;
/*--------------------------------------------------------------------*/
/*
---------------------------------------------
purpose -- to perform a axpy with two vectors
z := z + a*x + b*y
where y and x are double vectors
created -- 98jan23, cca
--------------------------------------------
*/
void
DVaxpy2 (
int size,
double z[],
double a,
double x[],
double b,
double y[]
) ;
/*--------------------------------------------------------------------*/
/*
-----------------------------------------
purpose -- compute a multiple dot product
sums[0] = row0[*] * col0[*]
sums[1] = row0[*] * col1[*]
sums[2] = row0[*] * col2[*]
sums[3] = row1[*] * col0[*]
sums[4] = row1[*] * col1[*]
sums[5] = row1[*] * col2[*]
sums[6] = row2[*] * col0[*]
sums[7] = row2[*] * col1[*]
sums[8] = row2[*] * col2[*]
created -- 98may02, cca
-----------------------------------------
*/
void
DVdot33 (
int n,
double row0[],
double row1[],
double row2[],
double col0[],
double col1[],
double col2[],
double sums[]
) ;
/*
-----------------------------------------
purpose -- compute a multiple dot product
sums[0] = row0[*] * col0[*]
sums[1] = row0[*] * col1[*]
sums[2] = row0[*] * col2[*]
sums[3] = row1[*] * col0[*]
sums[4] = row1[*] * col1[*]
sums[5] = row1[*] * col2[*]
created -- 98may02, cca
-----------------------------------------
*/
void
DVdot23 (
int n,
double row0[],
double row1[],
double col0[],
double col1[],
double col2[],
double sums[]
) ;
/*
-----------------------------------------
purpose -- compute a multiple dot product
sums[0] = row0[*] * col0[*]
sums[1] = row0[*] * col1[*]
sums[2] = row0[*] * col2[*]
created -- 98may02, cca
-----------------------------------------
*/
void
DVdot13 (
int n,
double row0[],
double col0[],
double col1[],
double col2[],
double sums[]
) ;
/*
-----------------------------------------
purpose -- compute a multiple dot product
sums[0] = row0[*] * col0[*]
sums[1] = row0[*] * col1[*]
sums[2] = row1[*] * col0[*]
sums[3] = row1[*] * col1[*]
sums[4] = row2[*] * col0[*]
sums[5] = row2[*] * col1[*]
created -- 98may02, cca
-----------------------------------------
*/
void
DVdot32 (
int n,
double row0[],
double row1[],
double row2[],
double col0[],
double col1[],
double sums[]
) ;
/*
-----------------------------------------
purpose -- compute a multiple dot product
sums[0] = row0[*] * col0[*]
sums[1] = row0[*] * col1[*]
sums[2] = row1[*] * col0[*]
sums[3] = row1[*] * col1[*]
created -- 98may02, cca
-----------------------------------------
*/
void
DVdot22 (
int n,
double row0[],
double row1[],
double col0[],
double col1[],
double sums[]
) ;
/*
-----------------------------------------
purpose -- compute a multiple dot product
sums[0] = row0[*] * col0[*]
sums[1] = row0[*] * col1[*]
created -- 98may02, cca
-----------------------------------------
*/
void
DVdot12 (
int n,
double row0[],
double col0[],
double col1[],
double sums[]
) ;
/*
-----------------------------------------
purpose -- compute a multiple dot product
sums[0] = row0[*] * col0[*]
sums[1] = row1[*] * col0[*]
sums[2] = row2[*] * col0[*]
created -- 98may02, cca
-----------------------------------------
*/
void
DVdot31 (
int n,
double row0[],
double row1[],
double row2[],
double col0[],
double sums[]
) ;
/*
-----------------------------------------
purpose -- compute a multiple dot product
sums[0] = row0[*] * col0[*]
sums[2] = row1[*] * col0[*]
created -- 98may02, cca
-----------------------------------------
*/
void
DVdot21 (
int n,
double row0[],
double row1[],
double col0[],
double sums[]
) ;
/*
-----------------------------------------
purpose -- compute a single dot product
sums[0] = row0[*] * col0[*]
created -- 98may02, cca
-----------------------------------------
*/
void
DVdot11 (
int n,
double row0[],
double col0[],
double sums[]
) ;
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