Tuesday, December 10, 2019

Sunday, December 08, 2019

Matlab 3D meshes and Volumes



[1] meshgrid https://la.mathworks.com/help/matlab/ref/meshgrid.html

[2] isosurface to obj file http://www.aleph.se/Nada/Ray/matlabobj.html


Thursday, November 21, 2019

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
 

Tuesday, November 19, 2019

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


Wednesday, November 13, 2019

Saturday, October 26, 2019

Vulkan Resources


[1] Vulkan-sdk https://www.lunarg.com/vulkan-sdk/
[2] Download https://vulkan.lunarg.com/
[3] Document
https://vulkan.lunarg.com/doc/view/1.1.101.0/linux/getting_started.html
https://vulkan.lunarg.com/doc/view/1.1.70.1/linux/getting_started.html
[4] C++ binding https://github.com/KhronosGroup/Vulkan-Hpp

[5] Examples https://github.com/SaschaWillems/Vulkan

[] gli, C++ image library. Works with OpenGL or Vulkan https://github.com/g-truc/gli

Sunday, October 20, 2019

https://github.com/alexjc/neural-enhance
https://github.com/idealo/image-super-resolution

Saturday, October 19, 2019

Fluids mandatory lectures



Navier-Stokes-equations
[0] Thesis: Parallel architecture to solve NSE https://tel.archives-ouvertes.fr/tel-01152623/document


[1] https://www.quora.com/What-are-the-uses-of-the-Bernoulli-equations-Eulers-equations-and-the-Navier-Stokes-equations-and-when-do-we-apply-them
[2] Prof. Wang http://web.cse.ohio-state.edu/~wang.3602/
[2] http://web.cse.ohio-state.edu/~wang.3602/courses/cse3541-2019-fall/
[2] Course http://web.cse.ohio-state.edu/~wang.3602/courses/cse788-2011-fall/
[2.1] SPH Water Simulation equations http://web.cse.ohio-state.edu/~wang.3602/courses/cse788-2011-fall/results/Yi_Liu/SPH%20Water%20Simulation.htm
[3] https://www.comsol.jp/multiphysics/fluid-flow-conservation-of-momentum-mass-and-energy
[4] Matthias Müller http://matthias-mueller-fischer.ch/
[5] CFD Intro https://www.mathematik.uni-dortmund.de/~kuzmin/cfdintro/lecture1.pdf


Others
[1] CSG https://evanw.github.io/csg.js/

Sunday, October 06, 2019

Quadtree/Octree Resources



Dual Marching Cubes
[1] C++ https://github.com/planaria/dmc
[2] C++ https://github.com/dominikwodniok/dualmc
[3] Dual MC, C++ https://github.com/VVingerfly/surfRecon

Python Quadtree
[1] https://github.com/karimbahgat/Pyqtree
[2] https://github.com/ceumicrodata/quadtree
[3] https://kpully.github.io/Quadtrees/



References:
[1] quad-boost https://arxiv.org/pdf/1607.03292.pdf
[2] Morton code http://www.cs.umd.edu/~hjs/pubs/ShaffIVC88.pdf
[3] https://www.slideserve.com/bessie/dual-marching-cubes

Odoo 17 Limit products to load on PoS

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