We will be performing a major infrastructure and web site ugprades on Friday, September 27th 8:00 am - 5:00 pm MST (UTC -7).

The website will be down during that time.

System Advisor Model (SAM)

Running the C program of the wind module

Start
Prev
1
Next
End

Mo11068
Topic Author

10 Jan 2019 15:52 #6594 by Mo11068

Running the C program of the wind module was created by Mo11068

Hi,

I have been trying to run the SAM's C code generated in command prompt. I have used the following command

gcc -o Golden Golden.c

Golden is my file name. However, I have received the error of "undefined resources" which is mostly related to the sscapi.h header file.
Could you please help me about this?

Thanks,
Mohammad

Please Log in or Create an account to join the conversation.

pgilman

12 Jan 2019 00:50 #6595 by pgilman

Replied by pgilman on topic Running the C program of the wind module

Dear Mohammad,

Please be sure that you are using the same operating system to generate the code from SAM and to run the C program. For example, if you are running the C program in Linux, you should use the Code Generator in the Linux version of SAM to be sure that the code package it creates is for the right operating system.

Best regards,
Paul.

Please Log in or Create an account to join the conversation.

pgilman

14 Jan 2019 23:45 #6596 by pgilman

Replied by pgilman on topic Running the C program of the wind module

Mohammad,

I just tested the win32 version of the 2018.11.11 release with the default PV/Residential C code generation using mingw 32 bit version on Windows 10. The folder with the code generation has the sscapi.h and appropriate ssc.dll files to run. I matched the results in SAM using the commands in the attached image.

Looking at your command, you are missing the

-lssc

from the build statement.

For reference, the generated Makefile for the C build is:

ifdef SystemRoot
    RM = del /Q
    EXT = .exe
     CIFLAGS = -I.. -L.
     LFLAGS = -lssc
#x64    SET PATH=c:\MinGW64\bin;%PATH%
#win32    SET PATH=c:\MinGW\bin;%PATH%
    CCCOMP = gcc
else
    PF = $(shell uname)
    ifneq (,$(findstring Darwin, $(PF)))
        VERS = $(shell sw_vers -productVersion)
         CIFLAGS = -I..
        EXT = .dylib
    else
        ifneq (,$findstring(Linux, $(PF)))
        CIFLAGS = -I.. ./ssc.so
        EXT = .o
        endif
    endif
    RM = rm -f
    CCCOMP = gcc
     LFLAGS = -ldl
endif
PROJ_NAME =  untitled
JFLAGS = -g
all :
    $(CCCOMP) $(CIFLAGS) -o$(PROJ_NAME) $(PROJ_NAME).c $(LFLAGS)
clean :
    $(RM) $(PROJ_NAME)$(EXT)
help:
    @echo "Please check the settings for your system.Your system may not be supported.Please contact sam.support@nrel.gov"

Let us know if you still are running into issues with the C code.

Please Log in or Create an account to join the conversation.

pgilman

23 Jan 2019 18:13 #6597 by pgilman

Replied by pgilman on topic Running the C program of the wind module

SAM comes with different ssc.dll files for 32-bit (

sscx32.dll

and 64-bit

ssc.dll

Windows operating systems. If you are compiling a 32-bit C program, you will need to use the 32-bit version of SSC.dll.
For a 32-bit C program, you should run the code generator from the 32-bit version of SAM (

C:/SAM/2018.11.11/win32/sam.exe

).
You can then run the

mingw32-make

from with the generated code instead of using the

gcc

command.
To use the

gcc

command instead on Windows 10 with mingw and mingw64 installed, you can do the following from a windows command prompt:
For 32-bit

Start the 32 bit version of SAM 2018.11.11 as described above.
Use the Code Generator to generate the C code in a folder like
```
c:\SAM_c_code
```
.
Open a windows command prompt go to the folder containing the generated code.
Assuming that the 32-bit version of MinGW is installed in
```
C:\MinGW
```
, type:

set path=%PATH%;c:\mingw\bin<br />
	gcc -I.. -L. -oGolden Golden.c -lsscx32<br />
	Golden.exe

64-bit:

Start the 64 bit version of SAM 2018.11.11 as described above.
Generate the C code in
```
c:\SAM_c_code
```
.
Open a windows command prompt and change to the folder.
Assuming the 64-bit version of MinGW is installed in
```
C:\MinGW64
```
:

set path=%PATH%;c:\mingw64\bin<br />
	gcc -I.. -L. -oGolden Golden.c -lssc<br />
	Golden.exe

Best regards,

Paul.

Please Log in or Create an account to join the conversation.

Start
Prev
1
Next
End

Moderators: pgilman

NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC.

NREL Home

NREL Research

Follow NREL

NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC.