Type mismatch in argument ‘s’ at 1; passed REAL8 to INTEGER4

This error message is indicating that there is a type mismatch in the argument 's' in the program, where a REAL(8) value is being passed to an INTEGER(4) parameter.

In Fortran, each variable has a specific data type and size that must be declared before it can be used. REAL(8) represents a double-precision floating-point number, which typically takes up 8 bytes of memory, while INTEGER(4) represents a 32-bit integer, which typically takes up 4 bytes of memory.

This error can occur when a variable of one data type is being passed as an argument to a subroutine or function that expects a different data type. To fix this error, you should make sure that the data types of the variables being passed match the expected types in the subroutine or function.