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<div class="moz-cite-prefix">Hi Moritz Schaar !<br>
<br>
Better late than never to thank you for that kind email !<br>
<br>
Thanks for spotting all these errors. We will fix them in the next
release which we are currently preparing.<br>
I think that nobody never used ROOT with CASToR under Windows ...<br>
<br>
I personally use the mingw-w64 cross compiler to compile CASToR
for Windows 64 bits from a linux distribution.<br>
We thought about distributing these binaries for Windows users.<br>
Finally, the datafile are now managed using file mapping so
reconstructing huge files without much memory won't be a problem
anymore.<br>
<br>
If I may ask, for what purpose are you using CASToR ? Whatever the
reason, thanks for using it !<br>
<br>
Best<br>
Simon<br>
<br>
<br>
Le 02/02/2018 à 11:53, Moritz Schaar a écrit :<br>
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cite="mid:9adf57a3f5d84ea89f60235505a9eaa5@mail2013.imt.uni-luebeck.de">
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<p class="MsoNormal">Hi CASToR users and developers,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I recently started working with CASToR and
managed to compile it for Ubuntu and Windows. As I am forced
to work with Windows, this was my primary targeted platform
(Ubuntu VM just for cross-checks).<o:p></o:p></p>
<p class="MsoNormal">However, I managed to build a 32bit release
with Windows 7 64bit, Visual Studio 2017 (v15.5.5), CMake
3.9.6 and pre-compiled ROOT binaries for Visual Studio 2013
(“root_v5.34.36.win32.vc12.zip”).<o:p></o:p></p>
<p class="MsoNormal">During this journey I discovered a couple
of errors with CASToR’s (CMake) configuration files which I
would to draw your attention to.<o:p></o:p></p>
<p class="MsoNormal">This is probably not the right place to
submit this, but I could not find any bug tracker or
repository to issue cases.<o:p></o:p></p>
<p class="MsoNormal">Due to my limited knowledge with CMake I
just mention issues here instead of offering true solutions.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My issues:<o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="mso-list:Ignore">1)<span style="font:7.0pt
"Times New Roman"">
</span></span><!--[endif]-->The default <span
style="color:black">CMakeLists.txt of CASToR provides two
forks, one for “win32” and one for unix-based system.</span><o:p></o:p></p>
<p class="MsoListParagraph"><span style="color:black">Whereas
the unix fork cares for flags as
“CASToR_BUILD_GATE_UTILITIES” and checks if “CASToR_ROOT” is
set (which is required to read ROOT files), the win32 fork
does not check this.<o:p></o:p></span></p>
<p class="MsoListParagraph"><span style="color:black">Hence, the
build will fail due to missing ROOT libraries.<o:p></o:p></span></p>
<p class="MsoListParagraph"><span style="color:black">My
solution to this was to copy the parts from the unix part to
the corresponding win32 section and it worked. Maybe this is
not the way it is supposed to be, please check.</span><o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="mso-list:Ignore">2)<span style="font:7.0pt
"Times New Roman"">
</span></span><!--[endif]-->ROOT for Windows can only be
built in 32bit mode, as the 64bit version would require a lot
of changes to ROOT and the underlying libraries (see
<a
href="https://root-forum.cern.ch/t/native-windows-64-bit-build/9102/27"
moz-do-not-send="true">https://root-forum.cern.ch/t/native-windows-64-bit-build/9102/27</a>).<o:p></o:p></p>
<p class="MsoListParagraph">Therefore, whenever a windows
platform is detected, the compiler should be force to 32bit
mode and the CASToR build as well (see variable
“CASToR_64bits”).<o:p></o:p></p>
<p class="MsoListParagraph">At least some prominent error should
be displayed if this is easier to implement.<o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="mso-list:Ignore">3)<span style="font:7.0pt
"Times New Roman"">
</span></span><!--[endif]-->The “FindROOT.cmake” file you
provide in “cmake-modules” only works for unix-systems.<o:p></o:p></p>
<p class="MsoNormal"
style="margin-left:18.0pt;text-indent:18.0pt">Here, the calls
to ${ROOT_CONFIG_EXECUTABLE} in the “execute_process”
instructions do not work for windows as the “root-config” file
cannot be executed.<o:p></o:p></p>
<p class="MsoNormal"
style="margin-left:18.0pt;text-indent:18.0pt">I adjusted this
section by borrowing parts from here:
<a
href="https://git.fangmeier.tech/caleb/TTTT/src/master/cmake/FindROOT.cmake"
moz-do-not-send="true">https://git.fangmeier.tech/caleb/TTTT/src/master/cmake/FindROOT.cmake</a><o:p></o:p></p>
<p class="MsoNormal"
style="margin-left:18.0pt;text-indent:18.0pt">Again, I do not
know if this is the way to go but it works for me.<o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="mso-list:Ignore">4)<span style="font:7.0pt
"Times New Roman"">
</span></span><!--[endif]-->When using CASToR_ROOT and
building in 32bit mode using Visual Studio 2017, this still
fails due to some weird error namely:<o:p></o:p></p>
<p class="MsoListParagraph">path_to_my_root_build\include\tvirtualx.h(183):
error C2059: syntax error : 'constant'<o:p></o:p></p>
<p class="MsoListParagraph">I nailed this down to a ROOT bug
submitted several years ago:<o:p></o:p></p>
<p class="MsoListParagraph"><a
href="https://sft.its.cern.ch/jira/browse/ROOT-3158"
moz-do-not-send="true">https://sft.its.cern.ch/jira/browse/ROOT-3158</a><o:p></o:p></p>
<p class="MsoListParagraph">The solution is to add the line
“#include "Windows4Root.h" right before “#include "TCanvas.h"
in the file:<o:p></o:p></p>
<p class="MsoListParagraph"><span style="color:black">castor_v1.2_0\source\include\management\gDataConversionUtilities.hh<o:p></o:p></span></p>
<p class="MsoListParagraph"><span style="color:black">I do not
know what consequences this has.<o:p></o:p></span></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="mso-list:Ignore">5)<span style="font:7.0pt
"Times New Roman"">
</span></span><!--[endif]-->One small cosmetic issue (maybe
it is a real issue but I did not have an problems with this):<o:p></o:p></p>
<p class="MsoListParagraph">Probably both lines of
“add_definitions( /DCASTOR_ROOT )” in the unix-fork of the
CMakeLists.txt should be replaced with the hyphenated version
(-DCASTOR_ROOT).<o:p></o:p></p>
<p class="MsoListParagraph">At least this is the case for all
other flags (-DCASTOR_MPI, -DCASTOR_VERBOSE et.c) in this
section. Maybe the compiler will also handle the slash
version.<o:p></o:p></p>
<p class="MsoListParagraph"><o:p> </o:p></p>
<p class="MsoNormal">Long story short, the build now works and
the results of the executables look promising. Nevertheless,
due to the 32bit memory restrictions, this CASToR build is
suboptimal.<o:p></o:p></p>
<p class="MsoNormal">I now plan on using a 32bit release to
convert my GATE geometry data and the corresponding ROOT
simulation files into CASToR data files.<o:p></o:p></p>
<p class="MsoNormal">In addition, I’m going to build a 64bit
release as well and develop my own stuff.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Bottom line: You guys did an amazing job
and I really like what v1.2 offers. Keep up the good work!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="color:#145A6E">Yours
sincerely,<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="color:#145A6E">Moritz
Schaar<o:p></o:p></span></b></p>
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