Seisunix December 2024

seisunix@mailman.seismic-unix.org

4 participants
3 discussions

binary/ascii read/write
by mohammed rafique Attar 27 Dec '24

27 Dec '24

Hi all, I am facing an issue with a large file. Seismic Unix has limitations when processing, reading, or writing a number of samples beyond approximately 61,500. Could you please suggest how to increase this limit for handling larger datasets? -- -- *Mohammed Rafique*

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SU list server
by Dominique Rousset 11 Dec '24

11 Dec '24

Hi, Due to a failed update of mailman, the SU list server has been offline for a few weeks. It seems to be running now (if we receive this message, it is) D.

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XDR and tirpc. installation error #86
by Fernando M. Roxo da Motta 11 Dec '24

11 Dec '24

Hi all, I finally upgraded my computer to Xubuntu 22.04 and tried to install 44R28. Naturally I got all the problemas reported at: https://github.com/JohnWStockwellJr/SeisUnix/issues/86 I read all the discussion in that thread and got not really convinced for some reason. I have changed the Makefile.config inserting after CFLAGS definition: CFLAGS += -I/usr/include/tirpc -ltirpc (BTW, did the same with C++FLAGS, ust in case) This solved the problem with the 'rpc/types.h' and possibl others. Then I stumbled upon the ld(1) messages: ....undefined reference to `xdr_<something>' Next I verified the command being executed, it was: /usr/bin/gcc -I/usr/local/geof/cwp/include -g -std=c99 -m64 -Wall -ansi -Wno-long-long -DCWP_LITTLE_ENDIAN -DSUXDR -I/usr/include/tirpc -ltirpc sucentsamp.c -L/usr/local/geof/cwp/lib -lsu -lpar -lcwp -lm -o /usr/local/geof/cwp/bin/sucentsamp Then I started to recall very old experiences in compiltion and linking of programs and changed to the program directoru and changed the command to: /usr/bin/gcc -I/usr/local/geof/cwp/include -g -std=c99 -m64 -Wall -ansi -Wno-long-long -DCWP_LITTLE_ENDIAN -DSUXDR -I/usr/include/tirpc sucentsamp.c -L/usr/local/geof/cwp/lib -lsu -lpar -lcwp -lm -ltirpc -o /usr/local/geof/cwp/bin/sucentsamp And Voilá! No errors and no complains at all! What? Didn't you get the change? It was the position of the "-ltirpc" in the command. The order of the libraries in the link edit phase can be very importante. The libraries are searched in the order they appear. I tried to find where those are inserted in the command and found out that those are, or seems to be, in every Makefile down the directory tree in the line: LFLAGS= $(PRELFLAGS) -L$L -lsu -lpar -lcwp -lm $(POSTLFLAGS) I changed the variable POSTLFLAGS in Makefile.config and it seems to work, at least in relation to the previous undefined reference. Now it is barking about: ....undefined reference to `isfinite' while linking the program "sunan.c". All references I found so far (abut 3min searching) suggest to comment the lines with the reference to "isfinite", but I am not convinced that this kind of test should be avoided at all. I am still working on it and, if solved I will come back. HTH Roxo -- ---------------- Non luctari, ludare -------------------+ WYSIWYG Fernando M. Roxo da Motta <petro(a)roxo.org> | Editor? Except where explicitly stated I speak on my own behalf.| VI !! PU5RXO | PX5Q6048 | I see text, ------------ Quis custodiet ipsos custodes?-------------+ I get text!

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