I use tensorflow and it complains in a python 32 bit env.
I will try to install the 32 bit and see if I can make it work. I need root more than tf tbf
so does that make it
cmake -Dall=OFF -Dmathmore=OFF -Dbuiltin_zlib=ON -Dgfal=OFF -Dbuiltin_freetype=ON -Dbuiltin_ftgl=ON -Droofit=ON -Dfftw3=ON TTTW_INCLUDE_DIR = D:\Software\fftw-3.3.5-dll32 FFTW_LIBRARY = D:\Software\fftw-3.3.5-dll32\libfftw3-3.lib D:\root
You know better than meā¦ Juts try (and then you can use the cmake-gui to change the optionsā¦)
Looks like python 64 is only issue now, Iāll update once the build is complete
Build succeeded with 139 warnings.
How do I add root to path now, in order to run root in any directory?
Edit : I added it to the path.
D:\debajyoti_project\Practice>root
------------------------------------------------------------
| Welcome to ROOT 6.15/01 https://root.cern |
| (c) 1995-2018, The ROOT Team |
| Built for win32 on 10 11 2018, 22:58:35 |
| From heads/master@v6-13-04-2160-gc716de08e9 |
| Try '.help', '.demo', '.license', '.credits', '.quit'/'.q' |
------------------------------------------------------------
root [0]
Thanks a lot @bellenot for your patience and all the help
However convolution still doesnt work
INFO:Eval -- RooRealVar::setRange(t) new range named 'refrange_fft_lxg' created with bounds [-10,30]
[#1] INFO:NumericIntegration -- RooRealIntegral::init(lx_Int[t]) using numeric integrator RooIntegrator1D to calculate Int(t)
Error in <TVirtualFFT::FFT>: handler not found
Error in <TVirtualFFT::FFT>: handler not found
Error in <TVirtualFFT::FFT>: handler not found
when I run the tutorial
#include "RooRealVar.h"
#include "RooDataSet.h"
#include "RooGaussian.h"
#include "RooLandau.h"
#include "RooFFTConvPdf.h"
#include "RooPlot.h"
#include "TCanvas.h"
#include "TAxis.h"
#include "TH1.h"
using namespace RooFit ;
void rf208_convolution()
{
// S e t u p c o m p o n e n t p d f s
// ---------------------------------------
// Construct observable
RooRealVar t("t","t",-10,30) ;
// Construct landau(t,ml,sl) ;
RooRealVar ml("ml","mean landau",5.,-20,20) ;
RooRealVar sl("sl","sigma landau",1,0.1,10) ;
RooLandau landau("lx","lx",t,ml,sl) ;
// Construct gauss(t,mg,sg)
RooRealVar mg("mg","mg",0) ;
RooRealVar sg("sg","sg",2,0.1,10) ;
RooGaussian gauss("gauss","gauss",t,mg,sg) ;
// C o n s t r u c t c o n v o l u t i o n p d f
// ---------------------------------------
// Set #bins to be used for FFT sampling to 10000
t.setBins(10000,"cache") ;
// Construct landau (x) gauss
RooFFTConvPdf lxg("lxg","landau (X) gauss",t,landau,gauss) ;
// S a m p l e , f i t a n d p l o t c o n v o l u t e d p d f
// ----------------------------------------------------------------------
// Sample 1000 events in x from gxlx
RooDataSet* data = lxg.generate(t,10000) ;
// Fit gxlx to data
lxg.fitTo(*data) ;
// Plot data, landau pdf, landau (X) gauss pdf
RooPlot* frame = t.frame(Title("landau (x) gauss convolution")) ;
data->plotOn(frame) ;
lxg.plotOn(frame) ;
landau.plotOn(frame,LineStyle(kDashed)) ;
// Draw frame on canvas
new TCanvas("rf208_convolution","rf208_convolution",600,600) ;
gPad->SetLeftMargin(0.15) ; frame->GetYaxis()->SetTitleOffset(1.4) ; frame->Draw() ;
}
I tried copying the fftw3 files to the root bin, and also adding the fftw3 dir in path. The problem is still there
try to call D:\wherever\root\bin\thisroot.bat before starting root, this will properly set the necessary environment variables
The folder where root is built is buildroot.
So I call D:\buildroot\bin\thisroot.bat
but the problem still remains :
D:\debajyoti_project\Practice>D:\buildroot\bin\thisroot.bat
D:\debajyoti_project\Practice>root
------------------------------------------------------------
| Welcome to ROOT 6.15/01 https://root.cern |
| (c) 1995-2018, The ROOT Team |
| Built for win32 on 10 11 2018, 22:58:35 |
| From heads/master@v6-13-04-2160-gc716de08e9 |
| Try '.help', '.demo', '.license', '.credits', '.quit'/'.q' |
------------------------------------------------------------
root [0] .x roofit.C
e[1mRooFit v3.60 -- Developed by Wouter Verkerke and David Kirkbye[0m
Copyright (C) 2000-2013 NIKHEF, University of California & Stanford University
All rights reserved, please read http://roofit.sourceforge.net/license.txt
warning: cannot find function 'roofit()'; falling back to .L
root [1] rf208_convolution()
[#1] INFO:Eval -- RooRealVar::setRange(t) new range named 'refrange_fft_lxg' created with bounds [-10,30]
[#1] INFO:NumericIntegration -- RooRealIntegral::init(lx_Int[t]) using numeric integrator RooIntegrator1D to calculate Int(t)
Error in <TVirtualFFT::FFT>: handler not found
Error in <TVirtualFFT::FFT>: handler not found
Error in <TVirtualFFT::FFT>: handler not found
D:\debajyoti_project\Practice>
Iāll check tomorrow and let you know
Can you check if the libFFTW.dll is in your D:\buildroot\bin\ directory?
The only files matching that name are here : 
But there is no file named libFFTW.dll
So FFTW was not built. Please open the cmake-gui and check that the fftw options and variables are properly set
Dear @bellenot,
I started cmake-gui and found out that builtin_fftw3 was unchecked, so I checked it and configured : That gave me this output
ROOT default compression algorithm is zlib
Vc does not support AMD64. Support for Vc disabled.
ROOT Platform: win32
ROOT Architecture: win32
Build Type: RelWithDebInfo
Compiler Flags: -nologo -ID:/root/build/win -FIw32pragma.h -FIsehmap.h -Zc:__cplusplus -MD -GR -EHsc- -W3 -wd4141 -wd4291 -wd4244 -wd4049 -D_WIN32 -D_XKEYCHECK_H -D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -DNOMINMAX -D_CRT_SECURE_NO_WARNINGS -std=c++14
Building freetype version 2.6.1 included in ROOT itself
Building pcre version 8.37 included in ROOT itself
Building LZMA version 5.2.1 included in ROOT itself
Could NOT find GIF (missing: GIF_LIBRARY GIF_INCLUDE_DIR)
Could NOT find TIFF (missing: TIFF_LIBRARY TIFF_INCLUDE_DIR)
Could NOT find PNG (missing: PNG_LIBRARY PNG_PNG_INCLUDE_DIR)
Could NOT find JPEG (missing: JPEG_LIBRARY JPEG_INCLUDE_DIR)
Looking for OpenGL
Downloading and building FFTW version 3.1.2
Enabled support for: asimage astiff builtin_afterimage builtin_fftw3 builtin_freetype builtin_ftgl builtin_gl2ps builtin_glew builtin_llvm builtin_clang builtin_lzma builtin_lz4 builtin_pcre builtin_xxhash builtin_zlib clad cling cxx14 exceptions explicitlink fftw3 gdml http opengl pch python roofit shared thread
Could NOT find Backtrace (missing: Backtrace_LIBRARY Backtrace_INCLUDE_DIR)
Native target architecture is X86
Threads disabled.
Doxygen disabled.
Go bindings disabled.
LLVM host triple: i686-pc-win32
LLVM default target triple: i686-pc-win32
Using MinSizeRel VC++ CRT: MD
Constructing LLVMBuild project information
LLVMHello ignored -- Loadable modules not supported on this platform.
Targeting X86
Clang version: 5.0.0
PrintFunctionNames ignored -- Loadable modules not supported on this platform.
AnnotateFunctions ignored -- Loadable modules not supported on this platform.
BugpointPasses ignored -- Loadable modules not supported on this platform.
Cling version (from VERSION file): ROOT_0.6~dev
Configuring done
Then I clicked on generate and it gave me no error. However the Error in <TVirtualFFT::FFT>: handler not found is still there and I donāt see the libFFTW.dll in the bin.
OK, my bad, please uncheck builtin_fftw, check fftw3, and specify the correct path for FFTW_INCLUDE_DIR and FFTW_LIBRARY
Then configure, generate, and build again.
I checked fftw3.
How do i set environment variables inside cmake?
Also, after generating, do I start a terminal and type the cmake build command?
Or should I start again from scratch from terminal?
FFTW_INCLUDE_DIR and FFTW_LIBRARY are not environment variables, they are cmake options.
Yes
No, just go on with your current set-up
after
cmake -Dall=OFF -Dmathmore=OFF -Dbuiltin_zlib=ON -Dgfal=OFF -Dbuiltin_freetype=ON -Dbuiltin_ftgl=ON -Droofit=ON -Dfftw3=ON FFTW_DIR=D:\Software\fftw-3.3.5-dll32\ FFTW_INCLUDE_DIR=D:\Software\fftw-3.3.5-dll32\fftw3.h FFTW_LIBRARY=D:\Software\fftw-3.3.5-dll32\libfftw3-3.lib D:\root
when I configure, it cannot find the FFTW3 files
-- FFTW3 not found. Set [environment] variable FFTW_DIR to point to your FFTW3 installation
-- Alternatively, you can also enable the option 'builtin_fftw3' to build FFTW3 internally'
-- For the time being switching OFF 'fftw3' option
Oh pleaseā¦ use the gui (where you can see those variables and fill them correctly), or type them correctly:
cmake -Dall=OFF -Dmathmore=OFF -Dbuiltin_zlib=ON -Dgfal=OFF -Dbuiltin_freetype=ON -Dbuiltin_ftgl=ON -Droofit=ON -Dfftw3=ON -DFFTW_INCLUDE_DIR=D:\Software\fftw-3.3.5-dll32\ -DFFTW_LIBRARY=D:\Software\fftw-3.3.5-dll32\libfftw3-3.lib D:\root
I apologise, I was doing it wrong. I should have confirmed before doing so. Also I think the commands were wrong
Even after
thereās this new error
"D:\buildroot\ALL_BUILD.vcxproj" (default target) (1) ->
"D:\buildroot\graf2d\asimage\ASImage.vcxproj" (default target) (5) ->
"D:\buildroot\core\Core.vcxproj" (default target) (6) ->
"D:\buildroot\core\base\Base.vcxproj" (default target) (7) ->
"D:\buildroot\PCRE.vcxproj" (default target) (207) ->
(CustomBuild target) ->
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\IDE\VC\VCTargets\Microsoft.CppCommon.targets(171,5): error MSB6006: "cmd.exe" exited with code
1. [D:\buildroot\PCRE.vcxproj]
4 Warning(s)
1 Error(s)
Time Elapsed 00:03:41.01
Apparently the PCRE build failed. Check if one of the .log files in the D:\buildroot\PCRE-prefix\src\PCRE-stamp directory contain any error messageā¦