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annotate example/fft/gpu/norm.cl @ 1673:2c3adce7eb40 draft

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fix fft on gpu
author Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
date Thu, 18 Jul 2013 17:16:43 +0900
parents
children 144e573b030b
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1673
2c3adce7eb40 fix fft on gpu
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents:
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1 __kernel void
2c3adce7eb40 fix fft on gpu
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents:
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2 norm(__constant long *param, __global float2 *in_x, __global float2 *out_x)
2c3adce7eb40 fix fft on gpu
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents:
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3 {
2c3adce7eb40 fix fft on gpu
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
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4 unsigned long gid = (unsigned long)get_global_id(0);
2c3adce7eb40 fix fft on gpu
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents:
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5 unsigned long nid = (unsigned long)get_global_id(1);
2c3adce7eb40 fix fft on gpu
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents:
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6
2c3adce7eb40 fix fft on gpu
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents:
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7 long n = param[3];
2c3adce7eb40 fix fft on gpu
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents:
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8
2c3adce7eb40 fix fft on gpu
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents:
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9 out_x[nid*n+gid].x = in_x[nid*n+gid].x / (float)n;
2c3adce7eb40 fix fft on gpu
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents:
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10 out_x[nid*n+gid].y = in_x[nid*n+gid].y / (float)n;
2c3adce7eb40 fix fft on gpu
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents:
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11 }