28
:
48
: warning: incompatible integer to pointer conversion passing
'
__global int'
to parameter of type
'
__private int *'
[-Wint-conversion]
array_dist[i] = Euclidean_distance(X_train[i],data_point[j]);
^~~~~~~~~~
my code:
inline
float
Euclidean_distance(
int
* array_point_A,
int
* array_point_B) {
float
sum =
0
.
0
;
float
w[20] = {
0
.
0847282
,
0
.
0408621
,
0
.
105036
,
0
.
0619821
,
0
.
0595455
,
0
.
0416739
,
0
.
0181147
,
0
.
00592921
,
0
.
040049
,
0
.
0766054
,
0
.
0441091
,
0
.
0376111
,
0
.
0124285
,
0
.
0733558
,
0
.
0587338
,
0
.
0303001
,
0
.
0579207
,
0
.
0449221
,
0
.
0530462
,
0
.
0530462
};
for
(
int
i =
0
; i <
20
; ++i) {
float
a = array_point_A[i] - array_point_B[i];
float
wieghted_distance = w[i] * (a * a);
sum += wieghted_distance;
return
sqrt(sum);
__kernel
void
KNN_classifier(__global
int
* restrict X_train, __global
int
* restrict Y_train, __global
int
* restrict data_point,
int
k)
float
array_dist[4344] = {};
int
index_arr[4344] = {};
for
(
int
i =
0
; i <
4344
; ++i) {
for
(
int
j =
0
; j <
20
; ++j) {
array_dist[i] = Euclidean_distance(X_train[i], data_point[j]);
index_arr[i] = i;
What I have tried:
I tried several solution but no improvement
__kernel
void
KNN_classifier(__global
int
* restrict X_train, __global
int
* restrict Y_train, __global
int
* restrict data_point,
int
k)
The method you are calling expects an
int *
:
inline
float
Euclidean_distance(
int
* array_point_A,
int
* array_point_B)
array_dist[i] = Euclidean_distance(X_train[i], data_point[j]);When you select an element from an array with an index, you get the item, not a pointer to the item.
So if you pass in a pointer to an integer and then select an element from that, you get an integer, not a pointer to an integer (remember, the name of an array is a pointer to the first element of that array - so a pointer to a value is also an array of those values).
Either use the
address of
operator '&' or pass the whole array when you call the second method.
inline
float
Euclidean_distance(
int
* array_point_A,
int
* array_point_B) {
And now the call:
array_dist[i] = Euclidean_distance(X_train[i], data_point[j]);
Change the call to:
array_dist[i] = Euclidean_distance(X_train, data_point);
However, looking at the implementation of your code that is still going to cause problems, since the
Euclidean_distance
code iterates through 20 elements of each array, but you are calling it for each of the 20 elements of the data_point array.
I think you need to consider very carefully what you are trying to do with this code.
Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad
spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or
edit the question
and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it.
Provide an answer or move on to the next question.
Let's work to help developers, not make them feel stupid.
