Data transmission method and electronic chip of the manycore type

An electronic chip of the manycore type comprising a plurality of execution cores, said execution cores being grouped in clusters, said clusters (C0 to C4) being interconnected by at least one first communication system and a second communication system different from said first communication system, the electronic chip comprising:

• first cluster (C1) on which a first function (A) is implemented;
• second cluster (C2) on which a second function (B) is implemented;
• a third cluster (C3) on which said second function (B′) is implemented, said third cluster being distinct from said first and second clusters;
• and
• communication links between said first cluster and said second and third clusters configured for transmitting at least one data item between said first function and said second function implemented on the second cluster and said second function implemented on the third cluster both through said first communication system and through said second communication system so that in the event that said first communication system fail, the second function (B′) implemented on the third cluster (C3) will still receive that at least one data item through said second communication system.