02-06-2012
generate array of random numbers
hi ,
I could see the problem in below 2D Array declaration
int vector [vec_rows] [0];
int result [mat_rows] [0];
Formual two access array element is *(base + i*cols + j).
Hence u have declared 'cols' size as Zero. Below statement overwrites on the same loc eventhough your incrementing i val.
for (int i = 0; i < vec_rows; i++)
vector [i] [0]= rand () % 50;
same problem with 'result' array also
Change the declarations as below it will work
int vector [vec_rows] [1];
int result [mat_rows] [1];
Let me know if am wrong.
Thank you
Pradeep kumar
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LEARN ABOUT OPENSOLARIS
vsinpi_
vsinpi_(3MVEC) Vector Math Library Functions vsinpi_(3MVEC)
NAME
vsinpi_, vsinpif_ - vector sinpi functions
SYNOPSIS
cc [ flag... ] file... -lmvec [ library... ]
void vsinpi_(int *n, double * restrict x, int *stridex,
double * restrict y, int *stridey);
void vsinpif_(int *n, float * restrict x, int *stridex,
float * restrict y, int *stridey);
DESCRIPTION
These functions evaluate the function sinpi(x), defined by sinpi(x) = sin(pi * x), for an entire vector of values at once. The first
parameter specifies the number of values to compute. Subsequent parameters specify the argument and result vectors. Each vector is
described by a pointer to the first element and a stride, which is the increment between successive elements.
Specifically, vsinpi_(n, x, sx, y, sy) computes y[i * *sy] = sinpi(x[i * *sx]) for each i = 0, 1, ..., *n - 1. The vsinpif_() function per-
forms the same computation for single precision data.
Non-exceptional results are accurate to within a unit in the last place.
USAGE
The element count *n must be greater than zero. The strides for the argument and result arrays can be arbitrary integers, but the arrays
themselves must not be the same or overlap. A zero stride effectively collapses an entire vector into a single element. A negative stride
causes a vector to be accessed in descending memory order, but note that the corresponding pointer must still point to the first element of
the vector to be used; if the stride is negative, this will be the highest-addressed element in memory. This convention differs from the
Level 1 BLAS, in which array parameters always refer to the lowest-addressed element in memory even when negative increments are used.
These functions assume that the default round-to-nearest rounding direction mode is in effect. On x86, these functions also assume that the
default round-to-64-bit rounding precision mode is in effect. The result of calling a vector function with a non-default rounding mode in
effect is undefined.
These functions handle special cases and exceptions in the spirit of IEEE 754. In particular,
o sinpi(NaN) is NaN,
o sinpi(+-0) is +-0,
o sinpi(+-Inf) is NaN, and an invalid operation exception is raised.
An application wanting to check for exceptions should call feclearexcept(FE_ALL_EXCEPT) before calling these functions. On return, if
fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW) is non-zero, an exception has been raised. The application can then
examine the result or argument vectors for exceptional values. Some vector functions can raise the inexact exception even if all elements
of the argument array are such that the numerical results are exact.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Committed |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
feclearexcept(3M), fetestexcept(3M), attributes(5)
SunOS 5.11 14 Dec 2007 vsinpi_(3MVEC)