100
edits
Changes
→Visual Studio 2017 and CUDA 9.1 Problem
{{GPU610/DPS915 Index | 2012320171}}=Student Resources=The purpose of this page is to share useful information that can help groups with their game projects.
After following the instructions,,provided in today'''''incx'''''s lecture, to setting up the library and include files in the project properties to run Cuda on VS 2012 Express at home, I still encounter:is the stride for vector xlinker error; "unable to find cuda_runtime.h". Googling around, there are two ways around this. It By default, VS Studio uses the 32bit debugger, which you can change in project properties. You will have any valueto use the Win32 version of the library directives (ie in my case "C:\Program Files\NVIDIA Corporation\NvToolsExt\lib\Win32") with the default debugger. If use the x64 library files, change the debugger to 64bit (which I neglected and lost a good portion of time). Cheers.
Find nvcc.profile (usually located in "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v5.0\bin") and replace everything inside it with this (if you have not changed it before):<pre> TOP = $(_HERE_)/.. PATH += $(TOP)/open64/bin;$(TOP)/nvvm;$(_HERE_);$(TOP)/lib; INCLUDES += "-I$(TOP)/include" "-I$(TOP)/include/cudart" "-IZ:/Program Files/Microsoft Visual Studio 11.0/VC/include" $(_SPACE_) LIBRARIES =+ $(_SPACE_) "/LIBPATH:$(TOP)/lib/$(_WIN_PLATFORM_)" cudart.lib CUDAFE_FLAGS +=Getting Started on MacOPENCC_FLAGS +=PTXAS_FLAGS += </pre> The most important part to note is: "INCLUDES +=..."httpWhat you want to put is "-IC:/PATH/TO/THE/developerINCLUDE/FILES", which in my case was: "-IZ:/Program Files/Microsoft Visual Studio 11.download0/VC/include".nvidia Hope this helps anyone, as it insanely irritated me as changing up the environment path on windows did nothing.com == Dynamically Allocated Shared Memory ==Here is a roundabout way of working around the shared memory limitations of your graphics card.The idea is to send in chunks that your kernel can handle, then keep on sending chunks until there are none to be sent. The address being sent is also being shifted based on the chunk size.<div style='color:#000000;background:#ffffff;'> CHUNKSIZE <span style='color:#808030; '>=</span> <span style='color:#008c00; '>512</span><span style='color:#800080; '>;</span> shared_ <span style='color:#808030; '>=</span> CHUNKSIZE <span style='color:#808030; '>*</span> <span style='color:#800000; font-weight:bold; '>sizeof</span><span style='color:#808030; '>(</span>SimBody<span style='color:#808030; '>)</span><span style='color:#800080; '>;</span> <span style='color:#800000; font-weight:bold; '>while</span> <span style='color:#808030; '>(</span>chunks <span style='color:#808030; '>></computespan> <span style='color:#008c00; '>0</DevZonespan><span style='color:#808030; '>)</docsspan> <span style='color:#800080; '>{</htmlspan> BodyArray ba <span style='color:#808030; '>=</Cspan> <span style='color:#800080; '>{</span> <span style='color:#808030; '>&</span>arr<span style='color:#808030; '>.</span><span style='color:#603000; '>array</span><span style='color:#808030; '>[</span>index<span style='color:#808030; '>]</span><span style='color:#808030; '>,</span> CHUNKSIZE <span style='color:#800080; '>}</span><span style='color:#800080; '>;</span> SimCalc <span style='color:#808030; '><</span><span style='color:#808030; '><</span><span style='color:#808030; '><</span> numBlocks_<span style='color:#808030; '>,</span> numThreads_<span style='color:#808030; '>,</span> shared_ <span style='color:#808030; '>></span><span style='color:#808030; '>></span><span style='color:#808030; '>></span><span style='color:#808030; '>(</span>ba<span style='color:#808030; '>)</span><span style='color:#800080; '>;</span> cudaThreadSynchronize<span style='color:#808030; '>(</span><span style='color:#808030; '>)</span><span style='color:#800080; '>;</span> SimTick <span style='color:#808030; '><</span><span style='color:#808030; '><</span><span style='color:#808030; '><</span> numBlocks_<span style='color:#808030; '>,</span> numThreads_<span style='color:#808030; '>,</span> shared_ <span style='color:#808030; '>></span><span style='color:#808030; '>></span><span style='color:#808030; '>></span><span style='color:#808030; '>(</span>ba<span style='color:#808030; '>,</span> timeStep<span style='color:#808030; '>)</span><span style='color:#800080; '>;</span> cudaThreadSynchronize<span style='color:#808030; '>(</span><span style='color:#808030; '>)</span><span style='color:#800080; '>;</span> index <span style='color:#808030; '>+</span><span style='color:#808030; '>=</span> CHUNKSIZE<span style='color:#800080; '>;</span> <span style='color:#808030; '>-</span><span style='color:#808030; '>-</span>chunks<span style='color:#800080; '>;</span> <span style='color:#800080; '>}</docspan> chunks <span style='color:#808030; '>=</CUDA_Getting_Started_Macspan> arr<span style='color:#808030; '>.pdf</span>size <span style='color:#808030; '>/</span> CHUNKSIZE <span style='color:#808030; '>+</span> <span style='color:#008c00; '>1</span><span style='color:#800080; '>;</span> index <span style='color:#808030; '>=</span> <span style='color:#008c00; '>0</span><span style='color:#800080; '>;</span></div>
==New C Function ==Troubleshooting====Problem with CUDA driver version 5<pre>#include <stdio.0.24 on MacBook Pro 2012 [http://blogs.adobe.com/premiereprotraining/2012/08/known-issues-with-cuda-5-0-17-driver-including-crashes-and-kernel-panicsh>#include <math.html Fix]h>
void gputrack_self_ ( \
int *direction, \
int *nrep, \
float *yp, \
float *xp, \
int *turnnow, \
int *sizeofarrays, \
float *dphi, \
float *denergy, \
float *c1, \
float *c2, \
float *dEbin, \
float *dtbin, \
float *h, \
float *hratio, \
float *omegarev0, \
float *phi0, \
float *phi12, \
float *q, \
float *tatturn, \
float *VRF1, \
float *VRF1dot, \
float *VRF2, \
float *VRF2dot, \
float *xorigin, \
float *yat0, \
int *p, \
int *dturns, \
float *phiwrap, \
float *selfvolt, \
int *vselfDimRow, \
int *vselfDimCol, \
float *vself \
)
{
/* Local Variables */
int l,i,mm,t;
l = *sizeofarrays;
t = *turnnow;
// longtrack_self specific local variables
int cp;
cp = *p;
/* dphi=(xp+xorigin)*h*omegarev0(turnnow)*dtbin-phi0(turnnow) */
for(mm = 0; mm < l; mm++) {
dphi[mm] = (xp[mm] + *xorigin) * *h * omegarev0[t] * *dtbin - phi0[t];
}
/* denergy=(yp-yat0)*dEbin */
for(mm = 0; mm < l; mm++) {
denergy[mm] = (yp[mm] - *yat0) * *dEbin;
}
/* IF (direction.GT.0) THEN */
if (*direction > 0) {
/* p=turnnow/dturns+1 */
cp = t / *dturns + 1;
/* DO i=1,nrep */
for(i = 1; i <= *nrep; i++) {
/* forall(mm=1:size(xp)) dphi(mm)=dphi(mm)-c1(turnnow)*denergy(mm) */
for(mm=0;mm<l;mm++) {
dphi[mm] = dphi[mm] - c1[t] *denergy[mm];
}
/* turnnow=turnnow+1 */
t=t+1;
/* forall(mm=1:size(xp)) xp(mm)=dphi(mm)+phi0(turnnow)-&
xorigin*h*omegarev0(turnnow)*dtbin */
for(mm=0;mm<l;mm++) {
xp[mm] = dphi[mm] + phi0[t] - \
*xorigin * *h * omegarev0[t] * *dtbin;
}
/* forall(mm=1:size(xp)) xp(mm)=(xp(mm)-&
phiwrap*FLOOR(xp(mm)/phiwrap))/(h*omegarev0(turnnow)*dtbin) */
for(mm = 0; mm < l; mm++) {
xp[mm] = (xp[mm] - \
*phiwrap * floor(xp[mm] / *phiwrap)) / (*h * omegarev0[t] * *dtbin);
}
/* forall(mm=1:size(xp)) selfvolt(mm)=vself(p,FLOOR(xp(mm))+1) */
for(mm = 0; mm < l; mm++) {
int itemp = floor(xp[mm]);
selfvolt[mm] = vself[(*vselfDimRow * (itemp)) + (cp-1)];
}
/* forall(mm=1:size(xp)) denergy(mm)=denergy(mm)+q*((&
(VRF1+VRF1dot*tatturn(turnnow))*SIN(dphi(mm)+phi0(turnnow))+&
(VRF2+VRF2dot*tatturn(turnnow))*&
SIN(hratio*(dphi(mm)+phi0(turnnow)-phi12)))+selfvolt(mm))-c2(turnnow) */
for(mm = 0; mm < l; mm++) {
denergy[mm] = denergy[mm] + *q *(( \
(*VRF1 + *VRF1dot * tatturn[t]) * sin(dphi[mm] + phi0[t]) + \
(*VRF2 + *VRF2dot * tatturn[t]) * \
sin(*hratio * (dphi[mm] + phi0[t] - *phi12))) + selfvolt[mm]) -c2[t];
}
/* END DO */
}
}
else {
// p=turnnow/dturns
cp = t / *dturns;
// DO i=1,nrep
for (i=1;i<=*nrep;i++) {
// forall(mm=1:size(xp)) selfvolt(mm)=vself(p,FLOOR(xp(mm))+1)
for(mm = 0; mm < l; mm++) {
int itemp = (int)floor(xp[mm]);
selfvolt[mm] = vself[(*vselfDimRow*(itemp)) + (cp-1)];
}
/* forall(mm=1:size(xp)) denergy(mm)=denergy(mm)-q*((&
(VRF1+VRF1dot*tatturn(turnnow))*SIN(dphi(mm)+phi0(turnnow))+&
(VRF2+VRF2dot*tatturn(turnnow))*&
SIN(hratio*(dphi(mm)+phi0(turnnow)-phi12)))+selfvolt(mm))+c2(turnnow) */
for(mm = 0; mm < l; mm++) {
denergy[mm]=denergy[mm] - *q *(( \
(*VRF1 + *VRF1dot * tatturn[t]) *sin(dphi[mm] + phi0[t]) + \
(*VRF2 + *VRF2dot * tatturn[t]) * \
sin(*hratio * (dphi[mm] + phi0[t] - *phi12))) + selfvolt[mm]) + c2[t];
}
// turnnow=turnnow-1
t--;
/* forall(mm=1:size(xp)) dphi(mm)=dphi(mm)-c1(turnnow)*denergy(mm) */
for(mm = 0; mm < l; mm++) {
dphi[mm]=dphi[mm] + c1[t] * denergy[mm];
}
/* forall(mm=1:size(xp)) xp(mm)=dphi(mm)+phi0(turnnow)-&
xorigin*h*omegarev0(turnnow)*dtbin */
for(mm = 0; mm < l; mm++) {
xp[mm] = dphi[mm] + phi0[t] - \
*xorigin * *h * omegarev0[t] * *dtbin;
}
/* forall(mm=1:size(xp)) xp(mm)=(xp(mm)-&
phiwrap*FLOOR(xp(mm)/phiwrap))/(h*omegarev0(turnnow)*dtbin) */
for(mm = 0; mm < l; mm++) {
xp[mm] = (xp[mm] - \
*phiwrap * floor(xp[mm] / *phiwrap)) / (*h * omegarev0[t] * *dtbin);
}
}
}
// yp=denergy/dEbin+yat0
for(mm=0; mm<l; mm++) {
yp[mm] = denergy[mm] / *dEbin + *yat0;
}
*turnnow ==References==t; return;}</pre>
= Visual Studio 2017 and CUDA 9.1 Problem =I ran into this problem when trying to build '''thrust_sort.cu''' in the Thrust lecture. The only way I was able to build and run successfully was to create a '''CUDA 9.1 project'''. However, in the current version of Visual Studio 2017, unless you set the '''Platform Toolset''' to '''Visual Studio 2015 (v140)''', you will not be able to build and run CUDA 9.1 projects. This can be done by going to project properties, then to the General section, then changing the '''Platform Toolset'''. However, this is where I ran into a problem where Visual Studio would display an error and would not let me change the platform toolset. So I came up with the following workaround and it works:*If you haven't already done so, install the optional '''Visual Studio 2015 (v140)''' component which is available from the Visual Studio 2017 installer.*From Visual Studio, create a CUDA 9.1 project, then close the solution.*Using a text editor, open <project name>.vcxproj*Add the following as the first element in the XML under the '''Project''' tag: <nowiki><PropertyGroup> <CUDAPropsPath Condition="'$(CUDAPropsPath)'==''">$(VCTargetsPath)\BuildCustomizations</CUDAPropsPath> </PropertyGroup></nowiki>*Replace all occurrences (there are 2 of them) of v141 with v140.*Search for "CUDA 9.1" (you will find 2 occurrences). Then replace the first entire line with <code><nowiki><Import Project="$(CUDAPropsPath)\CUDA 9.1.props" /></nowiki></code> and the second entire line with <code><nowiki><Import Project="$(CUDAPropsPath)\CUDA 9.1.targets" /></nowiki><references/code>.*Close the file in the text editor then re-open the solution in Visual Studio. You should now be able to add your .cu files, build and run.