See the discussions here and here. There is a lot of room for improvement in the string to real parsing (which is currently using read(fmt=*) which is apparently quite slow.
The C strtod routine is much faster. Could add it as an option, or maybe even the default. Is it a guarantee that every Fortran compiler will have this? Seems to be true for Gfortran and Intel.
jacobwilliams
commented
2 years ago
See the discussions here and here. There is a lot of room for improvement in the string to real parsing (which is currently using
read(fmt=*)which is apparently quite slow.The C
strtodroutine is much faster. Could add it as an option, or maybe even the default. Is it a guarantee that every Fortran compiler will have this? Seems to be true for Gfortran and Intel.