Cuda resources

Tutorial 1:

[1] scv.bu.edu/examples
pycuda http://scv.bu.edu/examples/pycuda/

Technical Codes
[1] Properties
http://developer.download.nvidia.com/compute/cuda/2_3/toolkit/docs/online/group__CUDART__DEVICE_g5aa4f47938af8276f08074d09b7d520c.html

Linux System Information

Find if your Linux is 64 bit is by using:

$getconf LONG_BIT

`uname -m` tells only about the kernel, the userspace and distro can be still 32-bit. Similarly `lscpu` only tells what the CPU is capable of, not if OS, kernel and distro are 32 or 64 bit.
 

 

$file /lib/systemd/systemd

$lscpu

$uname -i

$uname -m 

$dpkg --print-architecture

 

cuda 8.0 compile related

Compile cuda-z

    https://sourceforge.net/p/cuda-z/code/HEAD/tree/trunk/


Cuda 8.0 and Qt5


$qmake file.pro

$make


1) Error fPIC

error: #error "You must build your code with position independent code if Qt was built with -reduce-relocations. " "Compile your code with -fPIC (-fPIE is not enough)."

 #  error "You must build your code with position independent code if Qt was built with -reduce-relocations. "\


#sol, add next parameter in Makefile


$nvcc -shared -Xcompiler -fPIC

2) Compile error , comment CZ_VER_BUILD block

3) Error link stage

bld/o/czdialog.o: In function `CZDialog::getCudaDeviceNumber()':

czdialog.cpp:(.text+0x421): undefined reference to `CZCudaDeviceFound'

bld/o/czdeviceinfo.o: In function `CZCudaDeviceInfo::prepareDevice()':

czdeviceinfo.cpp:(.text+0x569): undefined reference to `CZCudaCalcDeviceSelect'

bld/o/czdeviceinfo.o: In function `CZCudaDeviceInfo::updateInfo()':

czdeviceinfo.cpp:(.text+0x5c5): undefined reference to `CZCudaCalcDeviceBandwidth'

czdeviceinfo.cpp:(.text+0x5d2): undefined reference to `CZCudaCalcDevicePerformance'

bld/o/czdeviceinfo.o: In function `CZCudaDeviceInfo::readInfo()':

czdeviceinfo.cpp:(.text+0x448): undefined reference to `CZCudaReadDeviceInfo'

bld/o/czdeviceinfo.o: In function `CZCudaDeviceInfo::prepareDevice()':

czdeviceinfo.cpp:(.text+0x585): undefined reference to `CZCudaPrepareDevice'

bld/o/czdeviceinfo.o: In function `CZCudaDeviceInfo::cleanDevice()':

czdeviceinfo.cpp:(.text+0x615): undefined reference to `CZCudaCleanDevice'

bld/o/czcommandline.o: In function `CZCommandLine::printDeviceList()':

czcommandline.cpp:(.text+0x45b5): undefined reference to `CZCudaDeviceFound'

czcommandline.cpp:(.text+0x46e8): undefined reference to `CZCudaReadDeviceInfo'

bld/o/czcommandline.o: In function `CZCommandLine::exec()':

czcommandline.cpp:(.text+0x4b16): undefined reference to `CZCudaDeviceFound'

czcommandline.cpp:(.text+0x4e2c): undefined reference to `CZCudaReadDeviceInfo'

czcommandline.cpp:(.text+0x4fbb): undefined reference to `CZCudaPrepareDevice'

czcommandline.cpp:(.text+0x4fd0): undefined reference to `CZCudaCalcDeviceBandwidth'

czcommandline.cpp:(.text+0x52fe): undefined reference to `CZCudaCalcDevicePerformance'

czcommandline.cpp:(.text+0x561f): undefined reference to `CZCudaCleanDevice'

bld/o/main.o: In function `testCudaPresent()':

main.cpp:(.text+0x2): undefined reference to `CZCudaCheck'

bld/o/main.o: In function `getCudaDeviceNum()':

main.cpp:(.text+0x4c): undefined reference to `CZCudaDeviceFound'

main.cpp:(.text+0x96): undefined reference to `CZCudaReadDeviceInfo'


#sol, change order of object files


$ g++ -m64 -Wl,-O1 -o bin/cuda-z bld/o/main.o bld/o/cudainfo.o bld/o/czdialog.o bld/o/czdeviceinfo.o bld/o/czdeviceinfodecoder.o bld/o/czcommandline.o bld/o/log.o bld/o/platform.o bld/o/qrc_cuda-z.o bld/o/moc_czdialog.o bld/o/moc_czdeviceinfo.o bld/o/moc_czdeviceinfodecoder.o bld/o/moc_czcommandline.o   -L /usr/local/cuda/lib64 -L/usr/X11R6/lib64 -lcudart_static -ldl -lm -lrt -lQt5Widgets -lQt5Gui -lQt5Network -lQt5Core -lGL -lpthread

4) Execution error
./cuda-z: error while loading shared libraries: bld/o/cudainfo.o: cannot open shared object file: No such file or directory


#sol, move from bin to ..

$./cuda-z

Water VFX

[1] Water splash https://www.youtube.com/watch?v=_3rlGlfJoXE

[2] 2019 Cinematic Water Flood Effects  https://www.youtube.com/watch?v=lUPS_pi8qc8
[3] Water simulation and breakdown https://www.youtube.com/watch?v=lWv6LL8D-Xc
[4] Breakdown Pyramid https://www.youtube.com/watch?v=Ixk5S0hbcTc
[5] Water and objects, Moana https://www.youtube.com/watch?v=P1VW4ZhPENA
[6] Realflow https://vimeo.com/212562829
[7] Realflow snow https://vimeo.com/193565200
[8] Realflow gpu https://vimeo.com/191669103
[9] Realflow Technical Reel https://vimeo.com/191157858

Others
[1] VFX adding graphites on scenes https://www.youtube.com/watch?v=unx9GIGf3rc
[2] Sphere https://www.youtube.com/watch?v=w9AqR7UnVgI