CARLA 0.9.15 Crash - VulkanRHI vkCreateDescriptorPool Error

[SBAccn]

I’m experiencing a crash when trying to launch CARLA 0.9.15 using the CarlaUE4.sh script even with the -RenderOffScreen option. The terminal outputs the following error message:

./CarlaUE4.sh -RenderOffScreen
4.26.2-0+++UE4+Release-4.26 522 0
Disabling core dumps.
LowLevelFatalError [File:Unknown] [Line: 803]
VulkanRHI::vkCreateDescriptorPool(Device->GetInstanceHandle(), &PoolInfo, VULKAN_CPU_ALLOCATOR, &DescriptorPool) failed, VkResult=-2
at /home/jenkins/UnrealEngine_4.26/Engine/Source/Runtime/VulkanRHI/Private/VulkanPendingState.cpp:52
with error VK_ERROR_OUT_OF_DEVICE_MEMORY
Signal 11 caught.
Malloc Size=65538 LargeMemoryPoolOffset=65554
CommonUnixCrashHandler: Signal=11
Malloc Size=131160 LargeMemoryPoolOffset=196744
Malloc Size=131160 LargeMemoryPoolOffset=327928
Engine crash handling finished; re-raising signal 11 for the default handler. Good bye.
Segmentation fault

System Information
Machine is Dell XPS 13
OS : Ubuntu 22.04
CARLA Version: 0.9.15GPU id = 0 (Intel(R) Arc(tm) Graphics (MTL))
Device Name: Intel(R) Arc(tm) Graphics (MTL)
Vulkan Version: 1.3.204
Vulkan Driver Version: 1.3.204

I tried looking into the whole vulkaninfo log and noticed nothing out of the ordinary, any inputs or fixes will be highly appreciated.

[PatrickPromitzer]

Hi,
On the Dell website I read that your Laptop (XPS 13-Laptop) should have an "qualcomm adreno" GPU.
I found one version of this GPU with some GPU RAM data, and it was <8GB.

Carla needs at least 6GB GPU RAM, and 8Gb would be better to prevent crashes.

My guess is that your Laptop doesn't have enough power to run Carla.

[SBAccn]

Hi, On the Dell website I read that your Laptop (XPS 13-Laptop) should have an "qualcomm adreno" GPU. I found one version of this GPU with some GPU RAM data, and it was <8GB.

Carla needs at least 6GB GPU RAM, and 8Gb would be better to prevent crashes.

My guess is that your Laptop doesn't have enough power to run Carla.

Thanks for your efforts and time, I have been stuck here for the past 2 weeks , I really appreciate it @PatrickPromitzer
Could you help me with this further query as well ?
But in my other machine , the same script seems to run for at least a couple of times before it crashes ,

Specifications of it are ,
Lenovo Thinkpad T14 Gen3
12th Gen i5 Processor
16 GB RAM
Vulkan Version: 1.3.204
Vulkan Driver Version: 1.3.204
OS : Ubuntu 22.04
CARLA Version: 0.9.15
GPU id : Intel(R) Graphics (ADL GT2))

[PatrickPromitzer]

You need to check if your laptop has an GPU or is using the CPU as graphic card.

[SBAccn]

Hey @PatrickPromitzer
lspci | grep -i vga
I ran this command on my machine and the results were

@1TX7V44:~$ lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation Device 7d55 (rev 08) on my DELL XPS 13
00:02.0 VGA compatible controller: Intel Corporation Device 46a8 (rev 0c) on my Lenovo ThinkPad T14 , i looked up and both of these seems to be integrated GPUs

[PatrickPromitzer]

Your hardware will struggle to run Carla if it can even run it at all, with only an CPU graphic and without an NVIDIA GPU.
We tried a laptop NVIDIA GPU at work, and even than Carla will crash if the laptop is not powerful enough.

You need a good hardware or Carla will probably not even start.