Hello, I am trying to run CloudSuite on FullSystem Simulation using x86 ISA. Q1) I would like to know if gem5 can simulate such a benchmark suite (CloudSuite) in Full System simulation. Q2) Also, I would like to know if starting/using Docker inside the simulated system in the FS mode is supported. Thanks. -- *Best,Abdelrahman Hussein*

Hello, Note: the output below is from the gem5-GPT. If you have chatGPT Plus you can access this GPT/bot at https://chat.openai.com/g/g-o3y1y4t8J-gem5-gpt. I've made some inline comments as well. Hello! Regarding your queries about running CloudSuite on gem5 in Full System (FS) mode with x86 ISA: ### Q1: Simulating CloudSuite in Full System Simulation Yes, gem5 can simulate the CloudSuite benchmark suite in Full System simulation mode. Here's what you need to know: - **Full System (FS) Simulation**: In FS mode, gem5 simulates an entire machine including the processor, memory system, and I/O devices. This mode is more comprehensive and suitable for complex benchmarks like CloudSuite. - **x86 ISA Support**: gem5 supports various ISAs, including x86. Ensure you have the correct configuration for x86 to accurately simulate the environment CloudSuite expects. - **Benchmark Compatibility**: CloudSuite, being a collection of applications designed to mimic cloud computing workloads, should be compatible with gem5's FS mode. However, the complexity of these benchmarks might require specific configurations in gem5, especially regarding the system's memory, network, and I/O setups. - **Preparation**: You'll need to prepare disk images with the CloudSuite software installed. This step is crucial as gem5 simulates from the booting of an OS. Ensure your disk image has everything needed for CloudSuite to run. ### Q2: Using Docker in Simulated System in FS Mode Running Docker inside a simulated system in gem5's FS mode presents additional complexity: - **Feasibility**: Technically, it's feasible to run Docker inside gem5's FS mode as long as the simulated system meets Docker's requirements. This includes kernel compatibility, necessary kernel modules, and sufficient system resources. - **Performance Considerations**: Be aware that running Docker, which adds additional layers of abstraction and resource requirements, might significantly slow down the simulation. gem5 models systems at a very detailed level, and the added complexity of Docker containers could impact performance. [Editor's note: Running your app in docker shouldn't slow the simulation down much if at all] - **Configuration and Limitations**: Ensure that the simulated environment (including the kernel and hardware configurations) supports Docker. Some features used by Docker, like certain network configurations or specific kernel modules, might not be fully supported in gem5's simulated environment. - **Debugging and Troubleshooting**: If you encounter issues, utilize debugging techniques like `DPRINTF` in C++ or `print()` in Python within gem5 to diagnose problems. Be prepared for a potentially complex debugging process given the intricacies of both Docker and FS simulation. #### Recommendations: 1. **Start Simple**: Before attempting to run CloudSuite with Docker in FS mode, start with simpler benchmarks to ensure your gem5 setup is correctly configured. 2. **Documentation and Community Support**: Utilize gem5 documentation and community forums for specific guidance on complex setups like yours. 3. **Incremental Approach**: Gradually build your simulation complexity. Start with basic FS simulation, then introduce CloudSuite, and finally attempt Docker integration. Feel free to ask more specific questions if you encounter particular issues or need guidance on specific aspects of setting up or running your simulation! On Thu, Dec 21, 2023 at 3:35 AM Abdelrahman S. Hussein via gem5-users < gem5-users@gem5.org> wrote: > Hello, > > I am trying to run CloudSuite on FullSystem Simulation using x86 ISA. > > Q1) I would like to know if gem5 can simulate such a benchmark suite > (CloudSuite) in Full System simulation. > > Q2) Also, I would like to know if starting/using Docker inside the > simulated system in the FS mode is supported. > > > Thanks. > > -- > > *Best,Abdelrahman Hussein* > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-leave@gem5.org >

Hi Jason, Thank you so much! It is good to know that gem5 can run CloudSuite, given all the configurations are set properly. However, I guess I am facing a problem with running Docker on the simulated image. I installed Docker on the image through QEMU and I am sure it works fine. However, when I try to boot the image in gem5, the bootloader fails to start the Docker service: I tried booting with AtomicSimple CPU and it gave the following failures (at the end of the email). I also tried to boot using KVM and it also gave the same failures below. The simulation specifications: - ISA: X86 - Kernel: Vmlinux-5.4.49 - Gem5 Version: V23.0.1 - OS on the Image: Ubunutu 18.04 - Host OS: Ubuntu 20.04.1 LTS - Config: fs.py (I understand it is deprecated but I am just seeking any helpful insight) I tried to check the journalctl and systemctl after booting on gem5 but the log is truncated and does not print each line till the end on either telnel or the system.pc.com_1 file. However, it gives me that the status is failure. I am not sure where to begin debugging this. Is there a certain configuration I need to setup to enable the Docker service on gem5? I get the following errors: [ OK ] Started irqbalance daemon. [ OK ] Started System Logging Service. [ OK ] Started Permit User Sessions. Starting Terminate Plymouth Boot Screen... Starting Hold until boot process finishes up... [FAILED] Failed to start Accounts Service. See 'systemctl status accounts-daemon.service' for details. [ OK ] Started Terminate Plymouth Boot Screen. [ OK ] Started Hold until boot process finishes up. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started LSB: Record successful boot for GRUB. Starting Set console scheme... [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Set console scheme. [ OK ] Created slice system-getty.slice. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [FAILED] Failed to start Dispatcher daemon for systemd-networkd. See 'systemctl status networkd-dispatcher.service' for details. [FAILED] Failed to start containerd container runtime. See 'systemctl status containerd.service' for details. Starting Docker Application Container Engine... [FAILED] Failed to start Docker Application Container Engine. See 'systemctl status docker.service' for details. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. [ OK ] Started Stop ureadahead data collection 45s after completed startup. Thanks, -- *Best,Abdelrahman Hussein* On Thu, Dec 21, 2023 at 8:13 AM Jason Lowe-Power <jason@lowepower.com> wrote: > Hello, > > Note: the output below is from the gem5-GPT. If you have chatGPT Plus you > can access this GPT/bot at https://chat.openai.com/g/g-o3y1y4t8J-gem5-gpt. > I've made some inline comments as well. > > Hello! > > Regarding your queries about running CloudSuite on gem5 in Full System > (FS) mode with x86 ISA: > > ### Q1: Simulating CloudSuite in Full System Simulation > > Yes, gem5 can simulate the CloudSuite benchmark suite in Full System > simulation mode. Here's what you need to know: > > - **Full System (FS) Simulation**: In FS mode, gem5 simulates an entire > machine including the processor, memory system, and I/O devices. This mode > is more comprehensive and suitable for complex benchmarks like CloudSuite. > > - **x86 ISA Support**: gem5 supports various ISAs, including x86. Ensure > you have the correct configuration for x86 to accurately simulate the > environment CloudSuite expects. > > - **Benchmark Compatibility**: CloudSuite, being a collection of > applications designed to mimic cloud computing workloads, should be > compatible with gem5's FS mode. However, the complexity of these benchmarks > might require specific configurations in gem5, especially regarding the > system's memory, network, and I/O setups. > > - **Preparation**: You'll need to prepare disk images with the CloudSuite > software installed. This step is crucial as gem5 simulates from the booting > of an OS. Ensure your disk image has everything needed for CloudSuite to > run. > > ### Q2: Using Docker in Simulated System in FS Mode > > Running Docker inside a simulated system in gem5's FS mode presents > additional complexity: > > - **Feasibility**: Technically, it's feasible to run Docker inside gem5's > FS mode as long as the simulated system meets Docker's requirements. This > includes kernel compatibility, necessary kernel modules, and sufficient > system resources. > > - **Performance Considerations**: Be aware that running Docker, which adds > additional layers of abstraction and resource requirements, might > significantly slow down the simulation. gem5 models systems at a very > detailed level, and the added complexity of Docker containers could impact > performance. [Editor's note: Running your app in docker shouldn't slow the > simulation down much if at all] > > - **Configuration and Limitations**: Ensure that the simulated environment > (including the kernel and hardware configurations) supports Docker. Some > features used by Docker, like certain network configurations or specific > kernel modules, might not be fully supported in gem5's simulated > environment. > > - **Debugging and Troubleshooting**: If you encounter issues, utilize > debugging techniques like `DPRINTF` in C++ or `print()` in Python within > gem5 to diagnose problems. Be prepared for a potentially complex debugging > process given the intricacies of both Docker and FS simulation. > > #### Recommendations: > > 1. **Start Simple**: Before attempting to run CloudSuite with Docker in FS > mode, start with simpler benchmarks to ensure your gem5 setup is correctly > configured. > > 2. **Documentation and Community Support**: Utilize gem5 documentation and > community forums for specific guidance on complex setups like yours. > > 3. **Incremental Approach**: Gradually build your simulation complexity. > Start with basic FS simulation, then introduce CloudSuite, and finally > attempt Docker integration. > > Feel free to ask more specific questions if you encounter particular > issues or need guidance on specific aspects of setting up or running your > simulation! > > On Thu, Dec 21, 2023 at 3:35 AM Abdelrahman S. Hussein via gem5-users < > gem5-users@gem5.org> wrote: > >> Hello, >> >> I am trying to run CloudSuite on FullSystem Simulation using x86 ISA. >> >> Q1) I would like to know if gem5 can simulate such a benchmark suite >> (CloudSuite) in Full System simulation. >> >> Q2) Also, I would like to know if starting/using Docker inside the >> simulated system in the FS mode is supported. >> >> >> Thanks. >> >> -- >> >> *Best,Abdelrahman Hussein* >> _______________________________________________ >> gem5-users mailing list -- gem5-users@gem5.org >> To unsubscribe send an email to gem5-users-leave@gem5.org >> >