[Bug-glpk] GLPSOL, Version 4.9 (Windows XP Service Pack 2 Installation) - Bug

[Aaron Poole \(ME OPS\)]

To Whom It May Concern:

 

I think that I may have found a bug in Version 4.9 of GLPSOL
binary released from ftp://gnu.mirror.pacific.net.au/gnu/gnu/.
 I downloaded this package approximately eight months ago.

 

Attached you will find two files.

 

File (1) is my .mod file.  

 

This mod file is a modification from
the IBM examples at 
http://www-128.ibm.com/developerworks/linux/library/l-glpk2/ 
referred to as the  #8220;Post Office Problem #8221;

 

This model attempts to model a
rotating roster of thirteen days on, eight days off for a remote mining
operation in Western Australia.  The roster is set such that a crew (A
thru AP) could works either seven day shifts followed by six nights shifts,
followed by eight days off.  OR the crew works six nights shifts, followed
by seven day shifts followed by eight days off.  

 

Seats available on the airplane (to
the remote mining operation) is constrained by E01 thru E42.

 

Files (2)

 

            A
Microsoft Excel  #8220;input form #8221; for the resulting out file.

 

Best Regards,

 

 

Aaron Poole

Divisional Open Pit Mine Engineer

Newcrest Mining Limited

Ph: 618 9270 7007

Mob:  61400 203 918

 



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To Whom It May Concern:

 

I think that I may have found a bug in Version 4.9 of GLPSOL binary released from ftp://gnu.mirror.pacific.net.au/gnu/gnu/.  I downloaded this package approximately eight months ago.

 

Attached you will find two files.

 

File (1) is my .mod file.  

 

This mod file is a modification from the IBM examples at http://www-128.ibm.com/developerworks/linux/library/l-glpk2/  referred to as the “Post Office Problem”

 

This model attempts to model a rotating roster of thirteen days on, eight days off for a remote mining operation in Western Australia.  The roster is set such that a crew (A thru AP) could works either seven day shifts followed by six nights shifts, followed by eight days off.  OR the crew works six nights shifts, followed by seven day shifts followed by eight days off.  

 

Seats available on the airplane (to the remote mining operation) is constrained by E01 thru E42.

 

Files (2)

 

            A Microsoft Excel “input form” for the resulting out file.

 

Best Regards,

 

 

Aaron Poole

Divisional Open Pit Mine Engineer

Newcrest Mining Limited

Ph: 618 9270 7007

Mob:  61400 203 918

 

This email (including all attachments) is intended solely for the named recipients.  You should only read, transmit, distribute or act in reliance on  this email, or communicate all or any part of its content, if you are the intended recipient and are authorised by the sender to do so.

This email is confidential and may be subject to legal or other professional privilege.  Any confidentiality or privilege is not waived or lost because this email has been sent to you by mistake.  This email may also include personal information which is subject to requirements of the Privacy Act 1988 (Cth).

If you have received this email in error, please let us know by reply email, delete it from your system and destroy any copies.

You should be aware that emails may contain computer viruses or other defects and may not be successfully replicated on other systems.  Neither Newcrest nor the sender of this email gives any warranties in relation to these matters.

mod2.mod
Description: Binary data

ShiftMatrix.xls
Description: MS-Excel spreadsheet