<div dir="ltr"><div><div><div>Hi,<br><br></div>I would recommend trying this out with ParaView (<a href="http://paraview.org">paraview.org</a>) and see if it works there. Also, you may want to just use ParaView to do what you want for parallel volume rendering of dicom files. Writing code to do that is non-trivial and even many advanced VTK developers would spend a significant amount of time writing code to do that.<br><br></div>Best,<br></div>Andy<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Apr 19, 2017 at 9:00 PM, 595693085 <span dir="ltr"><<a href="mailto:595693085@qq.com" target="_blank">595693085@qq.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px">Dear VTK users:</div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"> I'm a new learner of vtk and mpi, and <span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px;line-height:normal">I'm trying to do volume rendering on a cluster(ubuntu).</span><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">I heared "vtkCompositeRenderManager" or "vtkIceTCompositePass" might realize it.</span></font><span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px;line-height:normal"> But I have met some problems at the beginning when using </span><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">vtkMPIController->Initialize() in a simple code</span></font><span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px;line-height:normal">. When I run it on a single computer, it's fine, but when I run it with "mpiexec -np 4 -f machine_config ./HelloWorld" command, some errors have occurred as follows:</span></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px;line-height:normal"><br></span></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">Generic Warning: In /home/root/Development/<wbr>DevelopmentTools/VTK_Source/<wbr>VTK-7.1.1/Parallel/MPI/<wbr>vtkMPICommunicator.cxx, line 72</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">MPI had an error</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">------------------------------<wbr>------------------</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">Unknown error class, error stack:</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">PMPI_Comm_dup(177)............<wbr>........: MPI_Comm_dup(MPI_COMM_WORLD, new_comm=0x6ddc40) failed</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">PMPI_Comm_dup(162)............<wbr>........:</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">MPIR_Comm_dup_impl(57)........<wbr>........:</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">MPIR_Comm_copy(739)...........<wbr>........:</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">MPIR_Get_contextid_sparse_<wbr>group(500)..:</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">MPIR_Allreduce_impl(764)......<wbr>........:</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">MPIR_Allreduce_intra(257).....<wbr>........:</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">allreduce_intra_or_coll_fn(<wbr>163).......:</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">MPIR_Allreduce_intra(417).....<wbr>........:</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">MPIDU_Complete_posted_with_<wbr>error(1137): Process failed</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">------------------------------<wbr>------------------</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><br></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> I have googled it for a long time, but there are fewer similar problems.And what I have tried are as follows:</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> (1)When build VTK with cmake, I turn on the flag for Module_vtkParallelMPI,VTK_<wbr>Group_MPI and other options including "parallel" and "mpi". And I also set the MPIEXE_MAX_NUMPROS and VTK_MPI_MAX_NUMPROS to 256.</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> (2)when using comand such as "mpiexec -np 8 ./HelloWorld", it's Ok, but when I use "mpiexec -np 8 -f </span></font><span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px;line-height:normal">machine_config ./HelloWorld</span><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">" on multiple nodes, MPI errors occurred. In addition, when using "mpiexec -np 8 -f machine_config ./OtherMPICodes" on other MPI codes, it's also fine. So I just want to know what else is needed to run the vtk-mpi program.</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> (3)I have added some "printf" messages in the vtk-mpi code, and I found the error ocurred when "</span></font><span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px;line-height:normal">vtkMPIController->Initialize(<wbr>)</span><span style="font-size:13.44px;line-height:normal;font-family:Verdana,Geneva,Helvetica,Arial,sans-serif">", So I think the error might be associated with the execute command.</span></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><span style="font-size:13.44px;line-height:normal;font-family:Verdana,Geneva,Helvetica,Arial,sans-serif"> (4)I am new at programming expecially in mpi and I also know little about cmakelists. So the error also might be associated with my code and cmake files. I will paste them in the end.</span></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><span style="font-size:13.44px;line-height:normal;font-family:Verdana,Geneva,Helvetica,Arial,sans-serif"><br></span></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><span style="font-size:13.44px;line-height:normal;font-family:Verdana,Geneva,Helvetica,Arial,sans-serif"> I am not from an English spenking conutry, and I struggled with vtk learnning. But my teacher told me vtk is a very good tool and thus I will not give up. Howerer, this issure has annoyed me for nearly a week. Could you give me some suggestions...</span><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">Any help is appreciated!</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"><br></span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">==============================<wbr>======</span></font><span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px;line-height:normal">code</span><span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px;line-height:normal">====================<wbr>=======================</span></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> Code:</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> #include <vtkMPIController.h></span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> #include <vtkSphere.h></span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> #include <stdio.h></span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"><br></span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> void process(<wbr>vtkMultiProcessController* controller, void* vtkNotUsed(arg))</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> {</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> int myId = controller->GetLocalProcessId(<wbr>);</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> int processes_number= controller-><wbr>GetNumberOfProcesses();</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> printf("Hello from %d of %d!\n",myId,processes_number);</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> }</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"><br></span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> int main( int argc, char* argv[] )</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> {</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> printf("test0\n");</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> vtkMPIController* controller = vtkMPIController::New();</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> printf("test1\n");</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> controller->Initialize(&argc, &argv);</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> if (controller->IsA("<wbr>vtkThreadedController"))</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> {</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> // Set the number of processes to 8 for this example.</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> controller-><wbr>SetNumberOfProcesses(8);</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> }</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> </span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> int numProcs = controller-><wbr>GetNumberOfProcesses();</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> controller->SetSingleMethod(<wbr>process, 0);</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> controller-><wbr>SingleMethodExecute();</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> controller->Finalize();</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> controller->Delete();</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"><br></span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> return 0;</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> }</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"><br></span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">==============================<wbr>======</span></font><span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px;line-height:normal">cmakelists</span><span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px;line-height:normal">==============<wbr>=============================</span></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> cmakelists:</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> cmake_minimum_required(VERSION 2.8)</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> #find_package(MPI REQUIRED)</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> find_package(VTK COMPONENTS</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> vtkParallelMPI</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> vtkRenderingParallel</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> )</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> include(${VTK_USE_FILE})</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> #ADD_DEFINITIONS("-DMPICH_<wbr>IGNORE_CXX_SEEK")</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> ADD_EXECUTABLE(mpi_composite mpi_composite.cpp)</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> TARGET_LINK_LIBRARIES (mpi_composite ${VTK_LIBRARIES})</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"><br></span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">==============================<wbr>======</span></font><span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px;line-height:normal">machine_config==========<wbr>==============================<wbr>===</span></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> machine_config(all install vtk, mpi and can run other MPI codes except vtk-mpi codes):</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> host1-machine:2</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> host2-machine:2</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> </span></font><span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px;line-height:normal">host3-machine</span><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">:2</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px;line-height:normal"> host4-machine</span><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal">:2</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> </span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> PS.:Could you tell me whether vtk can realize parallel volume rendering with dicom files in multiple nodes?I have realized it with volume render in a single computer, but I'm not sure whether it can be realized with mpi in multiple nodes..Thanks.</span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"><br></span></font></div><div style="font-family:'lucida Grande',Verdana,'Microsoft YaHei';line-height:23.8px"><font style="line-height:23.8px" face="Verdana, Geneva, Helvetica, Arial, sans-serif"><span style="font-size:13.44px;line-height:normal"> a struggling college student.</span></font></div></div><br>______________________________<wbr>_________________<br>
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