import os



def fun(x,y):
    # here compute something with the parameters x and y
    print(f'Calculation with {x} and {y}...')

def get_params(X,Y):
    # Make a list of all possible combinations
    # This can be done in a one-liner:
    #    params = [(a,b) for a in X for b in Y]
    # but if you don't like that here's a regular double loop
    # which is easier to extend to parameter sweeps with 3,4,5 etc
    # parameters.
    params = []
    for a in X:
        for b in Y:
            params.append( (a,b) )

    # Get the SGE_TASK_ID from the job array
    # Subtract 1 for Python 0-based indexing
    task_id = int(os.environ['SGE_TASK_ID']) - 1    
    
    return params[task_id]

if __name__ == '__main__':
    # List all values for the two parameters
    X = range(1,5)  # numbers 1-4
    Y = ('A','B','C')  # string values
    
    # Call the calculation function with the 
    # selected parameters.
    fun(*get_params(X,Y))
    
    # or if you prefer:
    #  x,y = get_params(X,Y)
    #  fun(x,y)
    

    
# An alternative:
#   Write a separate Python script to generate all of the possible parameter
#   combos and write them to a file.  Then in this script read in that
#   file and use SGE_TASK_ID to select the correct parameters from the
#   matching row in the file.