Hi all,
I've posted this in the hope that somebody in the CCP4 community may have come across this problem and can shed some light. I've posted this question on other lists (cnsbb, ccpnmr and aria - the reason will become clear), but with no success so far.

I have recently acquired a Macbook Pro running OSX 10.6.3, (Kernel version 10.3.0) and am unable to compile cns v1.21 from source, using either the gcc 4.2.1/4.4/4.5 compilers (4.4 and 4.5 installed using fink), and the Intel 11.1 (evaluation) compilers. I am aware that there are Mac OSX binaries available, but I am also using CNS for NMR structure calculation with the Aria 2.3 program, and to run that successfully CNS needs to be re-compiled with Aria-specific source code.

With the gcc4.5 compilers, CNS compiles and links with no warnings or errors, but fails at the execution stage. When I try to execute cns, either with './cns' or by running one of the test scripts, I get the following:

  dmemory error code = ******
  %ALLHP error encountered: fatal coding error
    (CNS is in mode: SET ABORT=NORMal END)
  *****************************************************
  ABORT mode will terminate program execution.
  *****************************************************
  Program will stop immediately.
           ============================================================
            Maximum dynamic memory allocation:           0 bytes
            Maximum dynamic memory overhead:             8 bytes
            Program started at:  on
            Program stopped at: 14:32:05 on 07-Jun-2010
            CPU time used:       0.0036 seconds
           ============================================================


With 4.2.1 (using gfortran), CNS fails at the linking stage with "Undefined symbols:" errors. With 4.4, CNS compiles successfully, but when executed produces a simple "segmentation fault" message.

With the 11.1 Intel compilers, CNS compiles successfully, but fails on execution:

forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image              PC                Routine            Line        Source
cns 000000010029C7BE _xtarmoin_ 1813 xdeclare.f cns 000000010029C68E _xreres_ 764 xdeclare.f
cns                000000010003E04A  _MAIN__            167         cns.f
cns                000000010000184C  Unknown            Unknown     Unknown
cns                00000001000017E4  Unknown            Unknown     Unknown


I have checked my shell stack limit, and to make sure, I set the shell stacksize using "ulimit -s 65532" (which I believe is the upper limit on Mac OSX) and by using the ifort linker option. Both of which made no difference.

I then added some compiler options in an attempt to obtain more debugging information, including "-check bounds -g" and "-heap-arrays". The following occurs on execution:

forrtl: severe (408): fort: (2): Subscript #1 of the array HEAP has value 155357288 which is greater than the up
per bound of 15

Image              PC                Routine            Line        Source
cns                000000010087410C  Unknown               Unknown  Unknown
cns                0000000100872C44  Unknown               Unknown  Unknown
cns                000000010082BCCE  Unknown               Unknown  Unknown
cns                00000001007E36AA  Unknown               Unknown  Unknown
cns                00000001007E3AF7  Unknown               Unknown  Unknown
cns                00000001002B48A4  _allhp_                   326  heap.f
cns 00000001002B7EC6 _heapvfy_ 93 heapvfy.f
cns                0000000100071409  _MAIN__                    60  cns.f
cns                0000000100000D5C  Unknown               Unknown  Unknown
cns                0000000100000CF4  Unknown               Unknown  Unknown


Any help/ideas would be very much appreciated.

Best wishes,
Pryank






<<attachment: pryank.vcf>>

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