<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi<div class=""><br class=""></div><div class="">I think <span style="color: rgb(68, 84, 106); font-family: Calibri, sans-serif; font-size: 10.5pt;" class="">OPENCL_LIBRARIES </span>needs to be set to OpenCL.dll, which should be somewhere in this lib folder (/lib/x64/OpenCL.dll ?)</div><div class="">Could you try this ?</div><div class=""><br class=""></div><div class="">Michka</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 25 Nov 2014, at 23:51, Xiaopeng Yang <<a href="mailto:yxp233@postech.ac.kr" class="">yxp233@postech.ac.kr</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(68, 84, 106);" class="">Hi,<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(68, 84, 106);" class=""> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(68, 84, 106);" class="">I am trying to compile ITK 4.6.1 with GPU ON, but I failed. Is there any tutorial or document about compiling ITK with GPU ON? I got warning messages as follows. And I ignored them and tried to build ITK but got error “cannot find CL/opencl.h”.<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(68, 84, 106);" class=""> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-family: Arial, sans-serif; color: red;" class="">WARNING: Target "ITKGPUCommon" requests linking to directory "C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v6.5/lib". Targets may link only to libraries. CMake is dropping the item.</span><span lang="EN-US" style="font-family: Arial, sans-serif;" class=""><o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-family: Arial, sans-serif; color: red;" class="">WARNING: Target "ITKGPUCommon" requests linking to directory "C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v6.5/lib". Targets may link only to libraries. CMake is dropping the item.</span><span lang="EN-US" style="font-family: Arial, sans-serif;" class=""><o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-family: Arial, sans-serif; color: red;" class="">WARNING: Target "ITKGPUCommon" requests linking to directory "C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v6.5/lib". Targets may link only to libraries. CMake is dropping the item.</span><span lang="EN-US" style="font-family: Arial, sans-serif;" class=""><o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-family: Arial, sans-serif; color: red;" class="">WARNING: Target "ITKGPUCommon" requests linking to directory "C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v6.5/lib". Targets may link only to libraries. CMake is dropping the item.</span><span lang="EN-US" style="font-family: Arial, sans-serif;" class=""><o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-family: Arial, sans-serif; color: red;" class="">WARNING: Target "ITKGPUCommon" requests linking to directory "C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v6.5/lib". Targets may link only to libraries. CMake is dropping the item.<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(68, 84, 106);" class=""> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(68, 84, 106);" class="">Here is how I set up directories of OpenCL:<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(68, 84, 106);" class="">OPENCL_INCLUDE_DIRS C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v6.5/include<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(68, 84, 106);" class="">OPENCL_LIBRARIES C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v6.5/lib<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(68, 84, 106);" class=""> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(68, 84, 106);" class="">Any help is appreciated!<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(68, 84, 106);" class=""> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: SimSun;" class=""><span lang="EN-US" style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(68, 84, 106);" class="">Best regards,<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; 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