Arithmetic device having magnetoresistive effect elements

An arithmetic device comprising:

• a first computational circuit including one or more first strings, each of the first strings having one or more first magnetoresistive effect elements provided on a first conducting layer;
• a second computational circuit including one or more second strings, each of the second strings having one or more second magnetoresistive effect elements provided on a second conducting layer;
• a third computational circuit configured to execute computational processing using a first signal from the first computational circuit and a second signal from the second computational circuit;
• a data holding circuit configured to hold information related to write error in the first and second magnetoresistive effect elements and a condition on write operations with respect to the first and second magnetoresistive effect elements;
• a control circuit configured to control write operations with respect to the first and second magnetoresistive effect elements based on the information;
• and
• a table generation circuit configured to execute a test operation on at least one of the first and second magnetoresistive effect elements, and generates a table related to the write error and the condition.