OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Storing data in a csv file error (running code in parallel) › Reply To: Storing data in a csv file error (running code in parallel) July 19, 2021 at 10:04 pm #5822 achodankarParticipant Hello Adrian, What do you mean by “IO only happens in the main process”? The code snippet is included in the getResults function and called in the main program. I would really appreciate help in this matter. Thank you. Yours sincerely, Abhijeet