rdparam references nelgv before it is read

[fischer1]

These are just diagnostics, so don't really impact code function... but are bugs in any case:

  if (ifneknekc.and.(nelgv.ne.nelgt)) call exitti(
 $ 'ABORT: nek-nek not supported w/ conj. ht transfer$',1)

  if (ifchar.and.(nelgv.ne.nelgt)) call exitti(
 $ 'ABORT: IFCHAR curr. not supported w/ conj. ht transfer$',nelgv)

[fischer1]

tdsum is also used in dssum before time00 is called.

We probably should call time00 once with (say) init

It looks like nek_init is not intializing the lagged variables in bm1lag, bm1, etc.

Here's another:
The variable (ifrzer(1)) has an undefined value.

[stgeke]

This applies only for rea:
https://github.com/Nek5000/Nek5000/blob/master/core/connect2.f#L46

In case of .par nelgt is defined before checking params:
https://github.com/Nek5000/Nek5000/blob/master/core/reader_par.f#L23