Running DSim from command line

red_elephant · May 6

I'm using Ubuntu 24.04 on WSL and I have installed DSim there. I'm trying to run an UVM AXI VIP I found on GitHub. There is a makefile there and this makefile runs DSim from the command line. When I do “make” I get this error:

dsim: error while loading shared libraries: libdummy_exports.so: cannot open shared object file: No such file or directory

Can someone explain to me what should i do?

Thank you so much!

pdhakal · May 8

The fact that the license file is a JSON file suggests that you are using the legacy Metrics license. To use the legacy license, you need to export DSIM_LICENSE:

export DSIM_LICENSE=/home/user/AltairDSim/2025/dsim-license.json

The presense of this environment variable lets dsim know that you wish to use the legacy licensing model.

Charles_Dawson · May 6

Hi.

The issue is that you have not sourced the shell_activate.bash file in the directory where you have installed dsim. If that doesn't work, can you send us your env? Do a env > env.txt and send us the env.txt file. Thanks.

red_elephant · May 7

It didn't work.

env.txt

Charles_Dawson · May 7

We are looking for the LD_LIBRARY_PATH being set properly, which it isn't. Also DSIM_HOME should be set. Here is what you need to do:
source /home/user/AltairDSim/2025/shell_activate.bash

env | grep DSIM_HOME

dsim -version-verbose

If those three commands work, then you should be fine. If you have other terminals, you need to do the source command in them as well, if you want DSim to work there.

red_elephant · May 7

source /home/user/AltairDSim/2025/shell_activate.bash output: Activating DSim version: 2025

env | grep DSIM_HOME output: DSIM_HOME=/home/user/AltairDSim/2025

but still when I run Makefile I get this error:
make SIMULATOR=dsim make sim_dsim TEST=default make[1]: Entering directory '/home/user/tvip-axi/sample/work' [ -f dsim_work/image.so ] || (make compile_dsim) make[2]: Entering directory '/home/user/tvip-axi/sample/work' dsim -genimage image -uvm 1.2 -l dsim_comp.log -timescale 1ns/1ps +define+UVM_NO_DEPRECATED +define+UVM_OBJECT_MUST_HAVE_CONSTRUCTO -top top -f /home/user/tvip-axi/tue/compile.f -f /home/user/tvip-axi/tvip-common/compile.f -f /home/user/tvip-axi/compile.f -f /home/user/tvip-axi/sample/env/compile.f /home/user/tvip-axi/sample/env/tvip_axi_sample_delay.sv /home/user/tvip-axi/sample/env/top.sv Copyright (C) 2017-2025 Altair Engineering Inc. All rights reserved. =N:[UVMSource] Using sources from '/home/user/AltairDSim/2025/uvm/1.2'

License error: Altair License Manager: License error

Feature(s): GlobalZoneEU, HyperWorks, HWDSim Error Code: 15 Error Description: [NETWORK] 6200@localhost - (Err: 15) Unable to connect to license server

193 =E:[UsageMeter (2025-05-07 17:55:38 +0300)] Altair License Manager: License error

Feature(s): GlobalZoneEU, HyperWorks, HWDSim Error Code: 15 Error Description: [NETWORK] 6200@localhost - (Err: 15) Unable to connect to license server

=F:[UsageMeter (2025-05-07 17:55:38 +0300)] Could not acquire Altair license; exiting.

pdhakal · May 7

Could you please run this command:
env | grep ALTAIR

You should get "ALTAIR_LICENSE_PATH=…"

It should be set to a valid license file if this is a standalone setup. But if you are running a license server locally (which is suggested by "6200@localhost", then you need Altair License Utility to be configured locally and you need to have imported the license file into the license utility. Additionally, the service (named Altair License Server on Windows — the daemon is probably named similarly in linux) needs to be running.

Note: edited for clarity and to remove incorrect information about almutil.

red_elephant · May 8

env | grep ALTAIR

ALTAIR_LICENSE_PATH=/home/user/AltairDSim/2025/dsim-license.json
I set my dsim-license.json file as an environment variable for ALTAIR_LICENSE_PATH. Now I get this error, I did not change anything in my license file:

make SIMULATOR=dsim make sim_dsim TEST=default make[1]: Entering directory '/home/user/tvip-axi/sample/work' [ -f dsim_work/image.so ] || (make compile_dsim) make[2]: Entering directory '/home/user/tvip-axi/sample/work' dsim -genimage image -uvm 1.2 -l dsim_comp.log -timescale 1ns/1ps +define+UVM_NO_DEPRECATED +define+UVM_OBJECT_MUST_HAVE_CONSTRUCTO -top top -f /home/user/tvip-axi/tue/compile.f -f /home/user/tvip-axi/tvip-common/compile.f -f /home/user/tvip-axi/compile.f -f /home/user/tvip-axi/sample/env/compile.f /home/user/tvip-axi/sample/env/tvip_axi_sample_delay.sv /home/user/tvip-axi/sample/env/top.sv Copyright (C) 2017-2025 Altair Engineering Inc. All rights reserved. =N:[UVMSource] Using sources from '/home/user/AltairDSim/2025/uvm/1.2'

License error: Altair License Manager: License error

Feature(s): GlobalZoneEU, HyperWorks, HWDSim Error Code: 9 Error Description: Feature not found

Feature: DSim Error Code: 4 Error Description: [LOCAL] /home/user/AltairDSim/2025/dsim-license.json - (Err: 4) License file is using unknown/invalid syntax

License Path: /home/user/AltairDSim/2025/dsim-license.json

347 =E:[UsageMeter (2025-05-08 15:57:19 +0300)] Altair License Manager: License error

Feature(s): GlobalZoneEU, HyperWorks, HWDSim Error Code: 9 Error Description: Feature not found

Feature: DSim Error Code: 4 Error Description: [LOCAL] /home/user/AltairDSim/2025/dsim-license.json - (Err: 4) License file is using unknown/invalid syntax

License Path: /home/user/AltairDSim/2025/dsim-license.json =F:[UsageMeter (2025-05-08 15:57:19 +0300)] Could not acquire Altair license; exiting.

pdhakal · May 8

The fact that the license file is a JSON file suggests that you are using the legacy Metrics license. To use the legacy license, you need to export DSIM_LICENSE:

export DSIM_LICENSE=/home/user/AltairDSim/2025/dsim-license.json

The presense of this environment variable lets dsim know that you wish to use the legacy licensing model.