[TRNSYS-users] Problems with dynamic arrays definition in new types

Fri May 25 09:30:34 PDT 2007

Jordi,
   Are you making a Type that is going to be in its own external dll 
or one that is going to be inside the TRNDll.dll. If you are going to 
link your component in to the rest of TRNDll.dll then you can add 
your allocatable arrays to TRNSYSData. If you are making a DLL that 
is external to TRNDll.dll then I would recommend that you create a 
new data module (called Type333Data.for or something) and add it to 
your project instead of modifying TRNSYSData.for and adding it to the project.

   Second, I would suggest that you stay away from trying to 
dynamically size the OUT() and OCHECK() arrays. The amount of spots 
reserved for those arrays is set by your Type during one of the 
initialization calls (when you set INFO(6) to the required number of 
outputs). What is normally done instead is to simply make the OUT() 
array big enough to handle the largest number of outputs that you 
anticipate having from your Type.
Cheers,
  David

At 10:14 5/25/2007, jordi cipriano wrote:
>Dear David,
>
>Many thanks, but I followed your instructions and when I compile my 
>Type a lot of errors appear:
>1. I wrote the following at the uses statement of my type:
>USE TrnsysData, ONLY: STORED,OUT,OCHECK,a,b,c,r,Tn,Tnm05,Tnm1
>These arrays are my allocatable arrays which I defined as 
>allocatable within the Trnsysdata routine, as you suggested. The 
>compilation error is:
>Error: Name in only-list does not exist.   [STORED]
>2. In my type I also included the allocate instructiion, after 
>reading the values of the parameters, as:
>IF(.NOT.ALLOCATED(STORED)) ALLOCATE(STORED(NSTORED),stat=istat)
>And the compilation error is:
>Error: This name does not have a type, and must have an explicit 
>type.   [STORED]
>and:
>Error: An array-valued argument is required in this context.   [ALLOCATED]
>
>Do you know what are the causes of these errors?
>
>Many thanks again,
>
>Jordi Cipriano
>----- Original Message -----
>From: <mailto:bradley at tess-inc.com>David Bradley
>To: <mailto:cipriano at cimne.upc.edu>jordi cipriano ; 
><mailto:trnsys-users at engr.wisc.edu>trnsys-users at engr.wisc.edu
>Sent: Friday, May 25, 2007 12:14 AM
>Subject: Re: [TRNSYS-users] Problems with dynamic arrays definition 
>in new types
>
>Jordi,
>   You have run into an annoyance of Fortran. As soon as you leave 
> the Type subroutine, the allocatable array disappears. What you 
> need to do is define the allocatable array globally in a "data only 
> module" Your ALLOCATE instruction stays where it is but then the 
> array doesn't disappear. You can see what I mean if you look at the 
> file TRNSYSData.for. You will see the lines:
>
>C ********* DECLARE ALLOCATABLE ARRAYS FOR USE IN DYNDATA
>DOUBLE PRECISION, ALLOCATABLE :: X1dd( : ,: ),X2dd( : ,: ),X3dd( : ,: )
>DOUBLE PRECISION, ALLOCATABLE :: X4dd( : ,: ),YDATAdd( : ,: ),DATAINdd( : )
>INTEGER , ALLOCATABLE :: LUSTORdd( : ), IPTdd( : )
>
>those lines declare the allocatable arrays that are actually used in 
>the DynamicData routine.
>Cheers,
>   David
>
>At 11:03 5/24/2007, jordi cipriano wrote:
>>Dear Trnsys users,
>>
>>I have a question concerning to the use of Dynamic arrays in new 
>>Trnsys types. I'm programming a new Type with fortran 90 and I'm 
>>using the instruction ALLOCATABLE to define the dimension of some 
>>arrays. This dimension is depending on an input defined in the proforma.
>>
>>The issue is that I don't exactly know at which step iteration 
>>should I define the array dimension so that this dimenson keeps 
>>saved in each iteration. In other words, if I define the array 
>>dimension just bellow the variables definition, each time the 
>>trnsys call my type, the matrix appear as "Undefined pointer/array" 
>>until trnsys finds the ALLOCATE instruction. This happens even if 
>>I've already defined the dimension in previous iteration callings. 
>>This fact affects all the calculations because one of the arrays is 
>>the STORED array, which I use to update the temporary terms of my ecuations.
>>
>>Does anybody know who to solve this problem?
>>
>>Many thanks,
>>
>>Jordi Cipriano
>>BEE-Group
>>CIMNE-Terrassa
>>CIMNE. Spain
>>
>>_______________________________________________
>>TRNSYS-users mailing list
>>TRNSYS-users at engr.wisc.edu
>>https://www.cae.wisc.edu/mailman/listinfo/trnsys-users
>
>****************************************************************************************
>Thermal Energy System Specialists (TESS), LLC
>David BRADLEY                           2916 Marketplace Drive - Suite 104
>Partner                                        Madison, WI 53719
>Phone: (608) 274-2577 USA
>Fax: (608) 278-1475
>E-mail: bradley at tess-inc.com
>Web Pages:  http://www.tess-inc.com     and      http://www.trnsys.com
>
>"Providing software solutions for today's energy engineering projects"
>****************************************************************************************

****************************************************************************************
Thermal Energy System Specialists (TESS), LLC
David BRADLEY                           2916 Marketplace Drive - Suite 104
Partner                                        Madison, WI 53719
Phone: (608) 274-2577 USA
Fax: (608) 278-1475
E-mail: bradley at tess-inc.com
Web Pages:  http://www.tess-inc.com     and      http://www.trnsys.com

"Providing software solutions for today's energy engineering projects"
****************************************************************************************
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