Fast ignition (FI) by the laser-accelerated ion beams is an advanced possible remedy to produce high energy in inertial confinement fusion. Low-divergence high-power beams can now be produced due to new technological advances in laser–plasma accelerators. Using the Deira-4 simulation code, conditions optimal for the ignition of deuterium–tritium (D-T) pellets by the aluminium heavy ion beam were investigated in this work. The results show that an aluminium ignitor beam with 1.4 GeV energy can provide hot-spot optimal ignition conditions.