User Tools

Site Tools


check_list

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
check_list [2008/05/16 14:59]
support
check_list [2018/06/15 09:04] (current)
support typo
Line 1: Line 1:
 ====== Check List before contacting the GAMS support ====== ====== Check List before contacting the GAMS support ======
- 
-Here are several reasons why you may want some help: 
-    * You think GAMS does not do what it should do 
-    * The solver has problems in solving your model 
-    * GAMS has problems with your hardware or operating system 
-    * You are stuck with a modeling or formulation problem 
-Of course we cannot do all the modeling work for you (unless you hire us as a consultant) but we have lots of experience in using GAMS in both small and large, complex modeling situations in all kind of different application areas, ranging from economics to chemical engineering. Just talking to us for a few minutes may put you on the right track again. 
- 
 In case you think GAMS or the solver fails, please provide us with as much relevant information as possible, such as: In case you think GAMS or the solver fails, please provide us with as much relevant information as possible, such as:
     * Your operating system ​     * Your operating system ​
     * GAMS version and solver used     * GAMS version and solver used
     * Size and structure (linear, nonlinear etc.) of the model      * Size and structure (linear, nonlinear etc.) of the model 
-Most of these information are included in the log file: +Most of these information are included in the **log file** (.log)
   * If you are using the GAMSIDE, there will be a file called ''​model_name.log''​ in your GAMS project directory. Alternatively you may just copy and paste the content of the process window into an e-mail.   * If you are using the GAMSIDE, there will be a file called ''​model_name.log''​ in your GAMS project directory. Alternatively you may just copy and paste the content of the process window into an e-mail.
-  * If you are working from the command line, please use the additional ​ command line option lo=2 (e.g. ''​gams trnsport.gms ​o=2''​) to redirect the screen output into a log-file. +  * If you are working from the command line, please use the additional ​ command line option lo=2 (e.g. ''​gams trnsport.gms ​lo=2''​) to redirect the screen output into a log file. 
  
 Find below an example of a log file (''​trnsport.log''​):​ Find below an example of a log file (''​trnsport.log''​):​
 <​code>​ <​code>​
---- Job trnsport.gms Start 05/16/08 14:58:33 + 
-GAMS Rev 227  ​Copyright (C) 1987-2008 GAMS Development. All rights reserved +--- Job trnsport.gms Start 08/10/15 11:44:37 24.4.6 r52563 WEX-WEI x86 64bit/MS Windows 
-Licensee: Franz Nelissen ​                                S080428/0001CN-WIN+GAMS 24.4.6 ​  Copyright (C) 1987-2015 GAMS Development. All rights reserved 
 +Licensee: Franz Nelissen ​                                S150318/0001CN-GEN
           GAMS Software GmbH                                         ​DC3459           GAMS Software GmbH                                         ​DC3459
 --- Starting compilation --- Starting compilation
 --- trnsport.gms(69) 3 Mb --- trnsport.gms(69) 3 Mb
---- Starting execution: elapsed 0:00:00.004+--- Starting execution: elapsed 0:00:00.002
 --- trnsport.gms(45) 4 Mb --- trnsport.gms(45) 4 Mb
 --- Generating LP model transport --- Generating LP model transport
 --- trnsport.gms(66) 4 Mb --- trnsport.gms(66) 4 Mb
 ---   6 rows  7 columns ​ 19 non-zeroes ---   6 rows  7 columns ​ 19 non-zeroes
---- Executing CPLEX: elapsed 0:00:00.009 +....
- +
-ILOG CPLEX       ​May ​ 1, 2008 22.7.2 WIN 4792.4799 VIS x86/MS Windows +
-Cplex 11.0.1, GAMS Link 34  +
- +
-Reading data... +
-...+
 </​code>​ </​code>​
 Please send us that file.  Please send us that file. 
  
-If possible also attach a (zipped) copy of your model and all necessary data files, which will allow us to reproduce the problem. If there are include files or other data sources, please use the ''​dumpopt''​ parameter to produce a single source file. In case there are confidential issues, you may send us a scalar version of your model, ​see: http://​www.gams.com/​docs/support/​convert.htm for instructions abut that and the usage of the ''​dumpopt''​ option.+If possible also attach a (zipped) copy of your model and all necessary data files, which will allow us to reproduce the problem. In case there are confidential issues, you may send us a scalar version of your model, ​ ​[[conversion_of_confidential_models_for_submission_to_gams_support|click here]] for instructions about that. 
 + 
 +Our e-mail system can handle attachments up to a size of 15MB. If you have to send us larger files please use our [[http://​www.gams.com/​upload/| file upload facility]] ​and send us the name of the uploaded file.
  
-Our e-mail system ​can handle attachments up to 15MB, if you have to send us larger file we recommend ​to use a free exchange ​file providerWe have made good experience with [[http://​drop.io/#|drop.io]].+As a security measure to prevent potential viruses, our mail system ​does not accept executable files (such as files ending in .exe, bat, or cmd)even if they are sent in a zipped (.zip, .tar, .tgz, .taz, .z, .gz) format. Any message of this type sent to us will be bounced back you. Adding an underscore ​to the file attachment (e.gfile.zip_) will help.
  
-As a security measure to prevent potential viruses, ​our mail system does not allow users to receive executable files (such as files ending in .exe, bat, or cmd), even if they are sent in a zipped (.zip, .tar, .tgz, .taz, .z, .gz) format. Any message of this type sent to us will be bounced back you. Adding an underscore to the file attachment (e.g. file.zip_) may help.+Please also visit our [[http://​support.gams.com/​|Support Wiki]].
  
 +You can reach GAMS by several means of communication:​ mail, fax and phone. The full addresses are:
 +  - GAMS Development Corporation, ​ USA
 +    * Phone: (+1) 202 342-0180
 +    * [[support@gams.com|support@gams.com]] ​
 +   - GAMS Software GmbH, Germany
 +     * Phone: (+49) 221 949-9170
 +    * [[support@gams.com|support@gams.com]] ​
  
  
IMPRESSUM / LEGAL NOTICEPRIVACY POLICY check_list.1210942750.txt.gz · Last modified: 2008/05/16 14:59 by support