It is faster when I do it in the first way,
but I get the following error: “free(): invalid next size (fast)”, so I wonder if there is something wrong with the first method.
Since I am integrating 8 variables, the second method seems unreasonable because the code runs for hours and doesn’t give me the answer. I already changed RooFit::Precision()…
I guess an integration like in example 1 could work. I would need an example to see what’s going on. Could you attach a debugger to see where the problem occurs?
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Reading symbols from root.exe...done.
(gdb) r
Starting program: /usr/local/root/bin/root.exe -l -b multdim2.C+
warning: the debug information found in "/lib64/ld-2.27.so" does not match "/lib64/ld-linux-x86-64.so.2" (CRC mismatch).
warning: File "/usr/local/root/lib/libCore.so-gdb.py" auto-loading has been declined by your `auto-load safe-path' set to "$debugdir:$datadir/auto-load".
To enable execution of this file add
add-auto-load-safe-path /usr/local/root/lib/libCore.so-gdb.py
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info "(gdb)Auto-loading safe path"
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
root [0]
Processing multdim2.C+...
Info in <TUnixSystem::ACLiC>: creating shared library /home/maria/Downloads/./multdim2_C.so
warning: File "/usr/local/root/lib/libRooFitCore.so-gdb.py" auto-loading has been declined by your `auto-load safe-path' set to "$debugdir:$datadir/auto-load".
RooFit v3.60 -- Developed by Wouter Verkerke and David Kirkby
Copyright (C) 2000-2013 NIKHEF, University of California & Stanford University
All rights reserved, please read http://roofit.sourceforge.net/license.txt
[#1] INFO:NumericIntegration -- RooRealIntegral::init(integ_Int[c,eta,l,lp,mass,phi,psi,theta]) using numeric integrator RooAdaptiveIntegratorND to calculate Int(theta,psi,l,phi,eta,mass,c,lp)
[#1] INFO:NumericIntegration -- RooRealIntegral::init(integ_Int[c,eta,l,lp,mass,phi,psi,theta]) evaluation requires 8-D numeric integration step. Evaluation may be slow, sufficient numeric precision for fitting & minimization is not guaranteed
7.70345e+17
free(): invalid next size (fast)
Program received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
51 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb)
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1 0x00007ffff6b8b801 in __GI_abort () at abort.c:79
#2 0x00007ffff6bd4897 in __libc_message (action=action@entry=do_abort,
fmt=fmt@entry=0x7ffff6d01b9a "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#3 0x00007ffff6bdb90a in malloc_printerr (
str=str@entry=0x7ffff6d03800 "free(): invalid next size (fast)")
at malloc.c:5350
#4 0x00007ffff6be2f60 in _int_free (have_lock=0, p=0x55555767d890,
av=0x7ffff6f36c40 <main_arena>) at malloc.c:4213
#5 __GI___libc_free (mem=0x55555767d8a0) at malloc.c:3124
#6 0x00007fffe8a52c4c in ROOT::v5::TFormula::ClearFormula (
this=this@entry=0x55555766c620)
at /usr/local/root-6.18.04/hist/hist/src/TFormula_v5.cxx:2234
#7 0x00007fffe8a52ddf in ROOT::v5::TFormula::~TFormula (this=0x55555766c620,
__in_chrg=<optimized out>)
at /usr/local/root-6.18.04/hist/hist/src/TFormula_v5.cxx:319
#8 0x00007fffe9d56579 in RooFormula::~RooFormula (this=0x55555766c620,
__in_chrg=<optimized out>)
at /usr/local/root-6.18.04/roofit/roofitcore/src/RooFormula.cxx:135
#9 0x00007fffe9d58b0e in RooFormulaVar::~RooFormulaVar (this=0x7fffffff85e0,
__in_chrg=<optimized out>)
at /usr/local/root-6.18.04/roofit/roofitcore/src/RooFormulaVar.cxx:106
#10 0x00007fffe62aa5c2 in multdim2() ()
---Type <return> to continue, or q <return> to quit---return
from /home/maria/Downloads/multdim2_C.so
#11 0x00007ffff7fc006a in ?? ()
#12 0x0000555555845120 in ?? ()
#13 0x00000001f7fc0000 in ?? ()
#14 0x00007ffff20c7c40 in ?? () from /usr/local/root/lib/libCling.so
#15 0x00007fffffffa5f0 in ?? ()
#16 0x00007ffff7fc0000 in ?? ()
#17 0x00007ffff20a1230 in cling::IncrementalExecutor::executeWrapper(llvm::StringRef, cling::Value*) const () from /usr/local/root/lib/libCling.so
#18 0x00007ffff2034007 in cling::Interpreter::RunFunction(clang::FunctionDecl const*, cling::Value*) () from /usr/local/root/lib/libCling.so
#19 0x00007ffff203566f in cling::Interpreter::EvaluateInternal(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::CompilationOptions, cling::Value*, cling::Transaction**, unsigned long) ()
from /usr/local/root/lib/libCling.so
#20 0x00007ffff2035917 in cling::Interpreter::process(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::Value*, cling::Transaction**, bool) () from /usr/local/root/lib/libCling.so
#21 0x00007ffff20f88bd in cling::MetaProcessor::process(llvm::StringRef, cling::Interpreter::CompilationResult&, cling::Value*, bool) ()
from /usr/local/root/lib/libCling.so
#22 0x00007ffff1fb481e in HandleInterpreterException (
metaProcessor=0x5555559b7890, input_line=<optimized out>,
---Type <return> to continue, or q <return> to quit---return
compRes=@0x7fffffffa5dc: cling::Interpreter::kSuccess,
result=result@entry=0x7fffffffa5f0)
at /usr/local/root-6.18.04/core/metacling/src/TCling.cxx:2152
#23 0x00007ffff1fc8f9f in TCling::ProcessLine (this=0x5555557ef820,
line=<optimized out>, error=0x7fffffffb75c)
at /usr/local/root-6.18.04/core/metacling/src/TCling.cxx:2269
#24 0x00007ffff1fbd6c7 in TCling::ProcessLineSynch (this=0x5555557ef820,
line=0x5555557f7cc0 ".X /home/maria/Downloads/./multdim2.C+",
error=0x7fffffffb75c)
at /usr/local/root-6.18.04/core/metacling/src/TCling.cxx:3176
#25 0x00007ffff76ec908 in TApplication::ExecuteFile (file=<optimized out>,
error=0x7fffffffb75c, keep=<optimized out>)
at /usr/local/root-6.18.04/core/base/src/TApplication.cxx:1162
#26 0x00007ffff76ec0ac in TApplication::ProcessLine (this=0x5555557dab30,
line=<optimized out>, sync=<optimized out>, err=0x7fffffffb75c)
at /usr/local/root-6.18.04/core/base/src/TApplication.cxx:1007
#27 0x00007ffff7bbb8f2 in TRint::ProcessLineNr (
this=this@entry=0x5555557dab30,
filestem=filestem@entry=0x7ffff7bcdbaf "ROOT_cli_",
line=line@entry=0x7fffffffb760 ".x multdim2.C+",
error=error@entry=0x7fffffffb75c)
at /usr/local/root-6.18.04/core/rint/src/TRint.cxx:761
#28 0x00007ffff7bbd1e9 in TRint::Run (this=0x5555557dab30,
---Type <return> to continue, or q <return> to quit---return
retrn=<optimized out>)
at /usr/local/root-6.18.04/core/rint/src/TRint.cxx:421
#29 0x0000555555554a0c in main (argc=<optimized out>, argv=0x7fffffffd8e8)
at /usr/local/root-6.18.04/main/src/rmain.cxx:30
The stack trace indicates that it’s a problem with a TFormulav5. It’s a known problem, and has been fixed in the development version of ROOT. Seeing that, I doubt that it’s connected to the integral.
You could try the nightly build from https://root.cern/nightlies to confirm that this is indeed the problem.
