Dear ROOT community,
I’m trying to run code in lxplus which includes TConvolution and TGraphErrors->Fit(“my_convoluted_TF1”). It works fine on my laptop, but as soon as I’m trying to run it on lxplus (in preparation for job submission), I get the following warnings:
Error in TVirtualFFT::FFT: plugin not found
Error in TVirtualFFT::FFT: plugin not found
Warning in TF1Convolution::MakeFFTConv: Cannot use FFT, probably FFTW package is not available. Switch to numerical convolution
The fit looses precision to a considerable extent although it runs faster.
lxplus8 has ROOT 6.28/02, my laptop and lxplus9 have ROOT 6.26.10.
Does Anyone know a solution to this issue?