/* * Copyright 1993-2008 NVIDIA Corporation.  All rights reserved. * * NOTICE TO USER:    * * This source code is subject to NVIDIA ownership rights under U.S. and * international Copyright laws.   * * This software and the information contained herein is being provided  * under the terms and conditions of a Source Code License Agreement.      * * NVIDIA MAKES NO REPRESENTATION ABOUT THE SUITABILITY OF THIS SOURCE * CODE FOR ANY PURPOSE.  IT IS PROVIDED "AS IS" WITHOUT EXPRESS OR  * IMPLIED WARRANTY OF ANY KIND.  NVIDIA DISCLAIMS ALL WARRANTIES WITH * REGARD TO THIS SOURCE CODE, INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE. * IN NO EVENT SHALL NVIDIA BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS * OF USE, DATA OR PROFITS,  WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE * OR OTHER TORTIOUS ACTION,  ARISING OUT OF OR IN CONNECTION WITH THE USE * OR PERFORMANCE OF THIS SOURCE CODE.   * * U.S. Government End Users.   This source code is a "commercial item" as  * that term is defined at  48 C.F.R. 2.101 (OCT 1995), consisting  of * "commercial computer  software"  and "commercial computer software  * documentation" as such terms are  used in 48 C.F.R. 12.212 (SEPT 1995) * and is provided to the U.S. Government only as a commercial end item. * Consistent with 48 C.F.R.12.212 and 48 C.F.R. 227.7202-1 through * 227.7202-4 (JUNE 1995), all U.S. Government End Users acquire the  * source code with only those rights set forth herein. */    /*     * NOTE: wrapper must ensure that parms.n >= 0, and parms.incx != 0      */    int tid;    int startx;    int i = 0;        tid = threadIdx.x;    startx = (parms.incx >= 0) ? 0 : ((1 - parms.n) * parms.incx);    if (blockIdx.x == 0) {        int addr = IDXX(tid+0*XINC);        int idx  = tid+0*XINC;        int incr = XINC * parms.incx;        __syncthreads();        /* copy x into GRF */        for (i = tid; i < parms.n; i += XINC) {            xx[idx] = parms.x[addr];            addr += incr;            idx  += XINC;        }        __syncthreads();        for (i = tid; i < parms.n; i += XINC) {            float dp = 0.0f;            int j;#if (TRANS)            addr = IDXA(0,i);#else            addr = IDXA(i,0);#endif            for (j = 0; j < parms.n; j++) {                float Aij = (i == j) ? 1.0f : 0.0f;#if ((UP==1)^(TRANS==1))                if ((i < j) || ((i == j) && (!parms.unit))) {#else                if ((i > j) || ((i == j) && (!parms.unit))) {    #endif                    Aij = parms.A[addr];                }                dp += Aij * xx[j];#if (TRANS)                addr += ROW_OFS;#else                addr += COL_OFS;#endif            }            parms.x[IDXX(i)] = dp;        }    }