Fortran Type Mismatch Error: REAL(8) to INTEGER(4)

This error message indicates a type mismatch in the argument 's' within your Fortran program. It occurs when a REAL(8) value, a double-precision floating-point number (typically 8 bytes), is passed to an INTEGER(4) parameter, a 32-bit integer (typically 4 bytes).

In Fortran, each variable must be declared with a specific data type and size before use. This error arises when a variable of one data type is passed as an argument to a subroutine or function that expects a different data type.

To resolve this, ensure that the data types of variables passed as arguments match the expected types in the subroutine or function. This can involve converting the REAL(8) value to an INTEGER(4) before passing it, or modifying the subroutine/function to accept the REAL(8) data type.