[MITgcm-support] lsopt / optim routines

Matthew Mazloff mmazloff at ucsd.edu
Tue Mar 20 15:37:30 EDT 2018


Lately I have been using:
http://wwwcvs.mitgcm.org/viewvc/MITgcm/MITgcm_contrib/mlosch/optim_m1qn3/?pathrev=HEAD <http://wwwcvs.mitgcm.org/viewvc/MITgcm/MITgcm_contrib/mlosch/optim_m1qn3/?pathrev=HEAD>

This is an alternative search algorithm code that I find easier to use (Thanks again Martin!). You may want to give it a try


> On Mar 20, 2018, at 11:46 AM, Andrew McRae <andrew.mcrae at physics.ox.ac.uk> wrote:
> Are these run as part of the daily builds?  I can't get it to build.
> Following part of the .pdf manual (I don't think this section has been ported online yet)...
> In lsopt/, the supplied blas libraries are 10+ years old and my compiler says the Pentium 4 blas1 library is incompatible.
> In optim/, "make depend" doesn't work (makedepend undefined).
> "make" obviously causes the compiler to complain about -lblas1 not existing.
> After changing the makefile to use -lblas instead of -lblas1, "make" gives the output
> f77 -o optim.x  optim_main.o optim_sub.o optim_numbmod.o optim_initmod.o optim_readdata.o optim_writedata.o optim_write_control.o xerbla.o simul.o -L. -L../lsopt/ -llsopt_ecco -lblas
> /usr/lib/gcc/x86_64-linux-gnu/4.9/../../../x86_64-linux-gnu/crt1.o: In function `_start':
> (.text+0x20): undefined reference to `main'
> optim_numbmod.o: In function `optim_numbmod_':
> optim_numbmod.f:(.text+0x1ff1): undefined reference to `ilnblnk_'
> optim_numbmod.f:(.text+0x2478): undefined reference to `ilnblnk_'
> collect2: error: ld returned 1 exit status
> Makefile:78: recipe for target 'optim.x' failed
> make: *** [optim.x] Error 1
> And this just looks like broken code rather than anything BLAS-related.  An undefined reference to main, and two undefined references to ilnblnk.
> ilnblnk is defined with
> c     == external ==
>       integer  ilnblnk
> Then used twice as
> il = max(ilnblnk(record),1)
> Any ideas?
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