Given the timing, I recommend that you perform initialization once per process/thread and reuse the process/thread for running inference. Next, we have to consider the clock speed and work-per-clock advantage of the CPU core. with 48 OpenMP threads per task # Disable CPU affinity which may degrade performance export MV2_ENABLE_AFFINITY=0 omp. So, you don't have 56 physical processors, but rather a combination of sockets, cores and hyper-threading. Allow additional threads, and one can be using the CPU while another is waiting for external data. of CPUs = Sockets X Cores per socket X Threads per Core. The best count would be one per virtual core (a core with HT counts as 2 virtual cores). Even with the specs of 2 cores and 4gb ram, it is a lot faster than my machine that has the exact same specs, except I don't know the speed of the core itself. runtime. AMD splits its new Threadripper 2 processors into X and WX families. Cores. Unet learning rateは1. A single CPU core can have up-to 2 threads per core. LoRA trained with v1 and LoRA trained with v2, and LoRA with different number of dimensions cannot be merged. For multi-threaded tests, thread count of 2, 4, and 8 were tested. The nproc Command. and having many apps opened. it runs as fast as 1. That seems pointess. g. In Hyper-V on WS2016, the default setting for number of Hardware Threads per Core is “1”. It corresponds to the following improvements in NovelAI's article (For Aspect Ratio Bucketing, I referred to NovelAI's code, but the final code is all original). If you don't know how many you have, open Task Manager > click Performance > on the bottom logical processors = number of threads. Select the Performance tab to see how many cores and logical processors your PC has. 2. </p> <p dir="auto">The default is fp16. To disable multithreading, specify one thread per core. The --mem=0 option requests all available memory per node. It is not a per request or per query limit. How does linux decide which core a thread runs on? 0. LR Schedulerはcosine. For example, in some operating systems, a different license may be needed depending on the number of CPU sockets. ckpt file from a LoRA checkpoint . On a fully loaded GPU, there are many more. Let's say I have 8 cores with 2 threads per core. as all know lscpu give the info about number of CORE and number of Thread. ESP32 is a series of low-cost, low-power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. Threads per core: You can disable multithreading by specifying a single thread per CPU core. It will list the total number of cores and the number of logical processors if that number is different. The ACCRE cluster features 8-core and 12-core nodes, so a user can request up to 12 CPU cores per task. For licensing purposes, a virtual processor is considered to have the same number of threads and cores as each physical processor on the underlying physical hardware system. ForEach example taken from msdn, also there are other options look here also if there is alot of delays involved like reading a file or waiting for network traffic i would recommend using async functions (see example 2, also from msdn): The two below have smaller file sizes. As per hyper-threading only 2 threads can execute simultaneously, how is it even possible that we set a default value 20. g. Many CPUs have multiple cores. You are now presented with a ton of different information, including the number of (physical) cores and logical processors (cores). The formula is: 1 (processor) * 2 (core) * 2 (threads) = 4; so, I could create a virtual machine with maximum 4 vCPU. You are now presented with a ton of different information, including the number of (physical) cores and logical processors (cores). If you want to find how many processors (or CPUs) a machine has the same way %NUMBER_OF_PROCESSORS% shows you the number of cores, save the following script in a batch file, for example, GetNumberOfCores. The term also refers to the ability of a system to support. Threads are the virtual components or codes, which divides the physical core of a CPU into virtual multiple cores. Doing so would lock that thread at 100% CPU and waste resources. CPU usage was at constant 100%. 0 framework that will actually determine the optimal number of threads to perform the tasks as efficiently as possible for you. 1 GHz with the Intel Turbo Boost Technology 2. NET 2. For this application,. The Windows Taskmanager shows 4 cores, and 8 threads. To help you to gauge the efficiency, the following charts are available: Bar chart showing the number of CPU threads at each frequencyThe basic overview of CPU family, model, etc. It's not as fast as doubling the cores, but. CPU options are currently supported using the Amazon EC2 console, the AWS CLI, an AWS SDK, or the Amazon EC2 API. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":". 0 GHz base/boost while the E-cores weigh in at 2. TL;DR: CPU Cores vs Threads. Alternatively, you could use the --mem-per-cpu option. Each core can only run 1 thread at a time, i. That is, each thread will be provided with some non-zero time to run, and no particular. Yes, it’s possible to check the number of CPU threads on your computer through the BIOS. Basically, the higher the number, the higher the training efficiency. A comma-separated list or hyphen-separated range of CPUs a container can use, if. CPU Threads. If you're trying to utilize all your cores optimally, Python threading won't help you with that. Learning rate: Input a value between 0. Number of Threads (CPUs) per Core. In some cases cores share some resource, e. hence the 8 "logical" cores. Thus you will get a total of 24 CPUs on a single node. Maven 3. Many CPUs have multiple cores. I have written a program that tries to do some calculations. , running 11 threads on 8 cores). Just go ahead and test on 16 or 32 cores to find out, how your performance scales with number of. github. *. Here’s how it looks: (Threads x Cores) x Physical CPU = Number vCPU. If your GPU has 448 cores, it’s not a compute capability 2. Modifying the CPU options for an instance results in instance replacement. ] will allocate a job with 1 task and 24 CPUs for that task. core. Data-oriented code is still critical toward performance, but the OP claims that keeping all CPU cores full is more important. 1. Hyperthreaded cores count for two, approximately - how well that works varies. CPU Core – The subcomponent of the CPU that includes the L1 cache and executes instructions. U-Net only LoRA and U-Net+Text Encoder LoRA should be able to merge, but the result is unknown. 7. Linux implements max number of threads per process indirectly!! number of threads = total virtual memory / (stack size*1024*1024) Thus, the number of threads per process can be increased by increasing total virtual memory or by decreasing stack size. For most use-cases, --cpus is a more convenient alternative. That is planned, but currently unavailable. The total number of threads in a block is the product of the 3 thread block dimensions. 1 About CPU Utilization. The size of the thread pool and the host operating system impact performance and processor utilization. If the goal of threading is parallelism, then the number of threads should scale linearly with the number of cores. Simply tap the Windows key (or click on the Start menu. 2. Changing the instance type of an existing instance directly alters the CPU options to become the default CPU options. CPU vs Core. LORA SETTINGS: - LoRA type: Standard - Train batch size: 2 - Epoch: 12 ( This can be whatever you want. – To change the number of threads per core on an existing VM, use the following Google Cloud console procedure: In the Google Cloud console, go to the VM instances page. </p> <h3 tabindex="-1" dir="auto"><a id="user-content-number-of-cpu-threads-per-core" class="anchor" aria-hidden="true" tabindex="-1" href="#number-of-cpu-threads-per. The command to get the thread count of a process is: cat /proc/<pid>/status. A single core of one of these cpus may be faster than an 8 core. Learn about our open source products, services, and company. The number of logical core per computing node is 2x20x2=80 which also matches with the number of "CPU" reported. I thought well but al least I can leave the pc building a huge resolution image, and my pc ended crashing lmaoRecommended threading strategies and OS platform. 51,960. and setting defaults: threads_count = mono_cpu_count () * threads_per_cpu; threadpool->limit_worker_min = threadpool->limit_io_min = threads_count; So for mono looks like thread pool takes number of cores into account only for validating max number of threads: max number of threads cannot be less than. In general, a processor can only work on one thread per core (CPUs with hyper threading can work on up to two threads per core). , for example, if you have 16 cores, maybe 47, 79, 127 and similar numbers just under a multiple of 16 are good to use. Method-1: How to find the number Of CPUs on Linux using the “/proc/cpuinfo” file. Running a simple Hello and waiting for the response using 32 threads on the server and 16 threads on the desktop, the desktop gives me a predict time of 91. I have a machine which has 32 processor but i am really not sure how many threads are running. This build-mode analyzes your project's dependency graph and schedules modules that can be built in parallel. When a task is executed on the CPU, it is divided into multiple threads that can be executed simultaneously on different cores or virtual cores, depending on the number of logical processors available. Therefore the max thread count is 96 and max core count. * and *. the 8 cores are physical cores that exist on the chip. 5 thread per cpu core. In my understanding the CPUs are still emulated and not directly attached. What we do have is 2 processors, each processor has 14 cores for a total of 28 cores and hyper threading is used with two threads per core so 28*2 = 56. #SBATCH --sockets-per-node=2 #SBATCH --cores-per-socket=16. This will show you the number of CPUs, as well as the number of threads per core. The actual limits are: 1023 in . 5. Network Rank (Dimension)は128. The number of logical cores, which equals “Thread(s) per core” × “Core(s) per socket” × “Socket(s)” i. More information F-16 VM CPU refer to this link. No matter how many threads you start in an application controlled by a general-purpose operating system, they all will run concurrently. Seed. In a general use case then, if the total amount of threads. threads, and the number of threads depends on the application requirements and architecture [34], [42]. Scales are quantized with 6 bits. 3. One cpu, in Kubernetes, is equivalent to 1 vCPU/Core for cloud providers and 1 hyperthread on bare-metal Intel processors. LoRA trained with v1 and LoRA trained with v2, and LoRA with different number of dimensions cannot be merged. If you would want one thread per core you could use JULIA_EXCLUSIVE=1 or, for example, a tool like ThreadPinning. The OS recognizes each hardware thread as a different CPU. OptimizerはDAdaptLion. 0. Yes, it’s possible to check the number of CPU threads on your computer through the BIOS. 001-0. Number of CPU cores: You can customize the number of CPU cores for the instance. Is it working as intended or is there something I am doing wrong? I want it to run on 16 threads. Mac OS has been slower to migrate to SMT than Windows. 76. In your case, you have two sockets, each containing a 14-core Xeon E5-2690 v4 CPU, and since that supports hyper-threading with two threads, each core can. 0 29492 29493 1 48. CPU performance can be optimized for maximum throughput by tuning CPU cores to use a maximum number of CPU threads. If your GPU has 448 cores, it’s not a compute capability 2. Your max thread count is, 4 CPU x 12 cores x 2 threads per core, so 12 x 4 x 2 is 96. What is the max number of concurrent threads running on a single core (I can’t find this number on the c. In the BIOS, navigate to the “CPU” or “Processor” section to see the number of threads. 1. At least technically, anyway. Number of CPU threads per core. A processor with eight cores will have 16. " On the next screen, you'll see many details about your CPU, including the number of cores it has. In my experiments, I found 5000 steps to be just about the right amount of training steps with the default 1e-5 Learning rate and cosine LR scheduler. The ESP32 series employs either a Tensilica Xtensa LX6 microprocessor in both dual-core and single-core variations, Xtensa LX7 dual-core microprocessor or a single-core RISC-V microprocessor and includes built-in antenna. To start, specify the MODEL_NAME environment variable (either a Hub model repository id or a path to the directory. NOTE: "Threads" refers to the number of processing units on each core rather than the number of application tasks to be launched per core. 5. Sep 4, 2023. 4 cores with hyperthreading can run 8 threads simultaneously. Sorted by: 2. You have 4 CPU sockets, each CPU can have, up to, 12 cores and each core can have two threads. Below it's a breakdown on how many calculations are performed if it's run on 1,2,3,4 cores (on a 4 logical processors laptop). 27 In Java, is there a programmatic way to find out how many concurrent threads are supported by a CPU? Update To clarify, I'm not trying to hammer the CPU. 7 29492 29494 1 51. 1. We can get more CPU/computational information about the system by using the “ lscpu. So as you have 8 cores each hyper-threading you will have a total of. The total number of threads that you can have is not limited by the CPU. 추천 0 비추천 0 댓글 0 조회수 320 작성일 2023-02-24 04:51:28. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":". It might seem like the number of cycles is a ridiculous. caches or FPUs. Number of partitions to use is situational. 39. In figure 7 below, the process with PID 42 has created 1 thread. NET 4. And you will feel all threads/processes are running at the same time. If it doesn't,. It's rare for ryzen/epyc cpus to not be 2 threads per core however, only the very earliest consumer. Note*: Number of physical Server: 1, Number of virtual CPU (processor): 2 Number of Cores in each processor (vCPU): 4, Threads per Core: 2. Improve this answer. ibm. Note that the performance of an HPC machine is not directly related with the number of cores. The CPU requirement for the GPQT (GPU) based model is lower that the one that are optimized for CPU. *). Fig 7: Number of threads per process using /proc. Virtual cores get mapped to operating system threads. The lscpu command has a number of useful options that you may. Yes, GUI shows number of threads per plot. However, let's say you have 2000 threads, 2 CPUs in the box, and each CPU has 16 cores, then certainly at most 32 of your running threads are truly 'executing stuff' - the other ones are ready to go if any of he 32 currently. 9 (PSR is CPU id the thread is currently assigned to) you see that the threads are running on the same cpu core (because of GIL)is the correct way to request N cores for a job. Download to learn more. The default folder path for WebUI's built in Additional-Networks tab is X:\Stable-Diffusion-WebUI\models\lora, where models\lora needs to be created. AWS::EC2::Instance CpuOptions. Because, in the specifications of Intel processors, they mention say if a processor has 4 cores simultaneous execution of 8 threads is possible. • CPU: used in some Oracle Solaris commands this is another name for a hardware thread. Seed is like an ID for randomized procedures. com>, Karel Zak <kzak@redhat. Those are the only lines of interest for this discussion. NET 4. The hyper-threading allows a core to complete two tasks at once. Because, in the specifications of Intel processors, they mention say if a processor has 4 cores simultaneous execution of 8 threads is possible. A few specialized tasks can. 3. Try AWS re:Post Connect with an AWS IQ expert The CPU configuration of each Amazon EC2 instance type. The Core i7-12700K has eight P-cores (high-performance) and four E-cores (Efficiency), for a total of 20 threads. 6 came with major RO scaleability. Today, CPUs have been two and 18 cores, each of. . Threads improve the overall performance of a process which includes computational speed. Multithreading: The ability of a central processing unit (CPU) (or a single core in a multi-core processor) to provide multiple threads of execution concurrently, supported by the operating system [3]. This significantly opens up the number of combinations and permutations to meet your specific workload need. But they're pretty rare - the common ones are video encoding, encryption, and data compression. But be aware that, unless you have another processor, it may crash or give you slow performance, since you need some processing power for the main OS. 004; LR scheduler. Virtualization hurts the performance by about 10%, and/or the CPU generation took a. A CPU can process at least one. So you might stop seeing speedups long before you are “using” all your cores. When you change the instance type of an existing instance, the CPU options automatically change to the default CPU options for the new instance type. CPU Thread Handling allows hosts to run VMs with a total number of processor cores greater than number of cores in the host. Notation for CPUs : NAME (Cores/Threads, Single core frequency, Max Multi core frequency). Sep 5, 2020 at 8:18. The basic assumption is that an “infinite loop” in Java takes up the whole CPU thread. For CPU-bound threads the resource is usually one CPU core. Press the Ctrl + Shift + Esc keys simultaneously to open the Task Manager. The CPU Threads Utilization metric collects CPU thread diagnostics for Oracle Solaris and Linux targets, useful for analysis of multi-threaded CPUs. This build-mode analyzes your project's dependency graph and schedules modules that can be built in parallel. If it has sixteen threads that means the 16 thread quad core (has 4 threads per core). The /proc/cpuinfo file stores CPU and system architecture dependent items, for each supported architecture. For the purposes of Docker and Linux distros CPUs are defined as: CPUs = Threads per core X cores per socket X sockets. This no longer seems to work for TrueNAS 12. This shows that the goal is not use as many CPU-cores as possible but instead to find the optimal value. Intel (the most. for your purposes you have 4 cores which are capable of 2 threads per core. The hardware should generate a NAN with a payload containingAlthough more server CPU cores represent better performance, finding the right number of CPU cores depends on your specific IT environment and workloads. Share:SPARC T5 and M5 processors [2, 3]—which are based on the highly successful SPARC S3 core first seen in the SPARC T4 processor—feature scalability exceeding 1,000 high-performance hardware threads (HWTs) for processing. the 8 cores are physical cores that exist on the chip. 4. Let’s finetune stable-diffusion-v1-5 with DreamBooth and LoRA with some 🐶 dog images. A thread is a stream of instructions. Each socket has a E7-4850V4 CPU with 16 cores. Users can check the number of threads by torch. /proc/cpuinfo will show total number of cores running, that includes 'virtual' cores of multithreading. The following restrictions only apply to older Intel CPUs and Atom, on newer CPUs (IceLake and later) TopDown can be collected for any thread: The top down metrics are collected per core instead of per CPU thread. LR warmupは0. Each processor has 10 cores, each core being basically equivalent to a classic single-core CPU on its own. execute one thread while the other is waiting on a cache miss). In other words, a task cannot be split across multiple nodes. The CPU, or processor, manages the fundamental computational work of the computer. py file; find line self. Please clarify, kindly bear if it's totally abusrd. g. NET 4. A logical CPU is usually used to describe the grand total of CPUs on the chip. . The OS recognizes each hardware thread as a different CPU. , AMD CPUs or older Intel CPUs) might result in a better performance under IPEX, but not guaranteed. Oct 8, 2021. exe at once. The Task Parallel Library is built on a foundation in the . By default, the CPU is tuned for maximum throughput. Choose either 1 or 2 processors, and an appropriate number of cores per processor. The second thread adds about 30% performance. Even servers in the 90s only managed one thread per CPU. Number of CPU threads per coreは自分のCPUに合わせてください。 Learning rateは1. Simultaneous multi-threading, called Hyper-Threading by Intel, splits each physical core into two logical processors. So, I can guess, 2048/128 = 20 threads are. It selects a process in the queue. 32xlarge: 64: 64: 1: Further Reading. A core is allow to exec 2 thread concurrently. Go to the Performance tab and select CPU from the left column. 2 cores). If "one CPU" means a core (like often in high-performance computing), then it depends: a 1-way SMT core can execute only 1 thread at a time while a 2-way SMT core can execute 2 thread at a time. The version 1 i posted here is not wrong, it just doesn't go in detail which might cause some people to have problems. Depending on the complexity of the. 1 39:44 How I'm picking a checkpoint to generate a full model . The server’s capacity is 32 CPU cores, so when every request to the website on average uses 0. e. To configure a flavor to use a. LR Schedulerはcosine. cpus () Returns an array of objects containing information about each CPU/core installed: model, speed (in MHz), and times (an object containing the number of milliseconds the CPU/core spent in: user, nice, sys, idle, and irq). Share:CPU (s): 4 On-line CPU (s) list: 0-3 Thread (s) per core: 2 Core (s) per socket: 2 Socket (s): 1. so wasn't found, figure out where it is and set an environment variable called whatever you want with the directory where it is. 0. get_ordinal (defval=0) [source] ¶IPEX is optimized for CPUs with AVX-512 or above, and functionally works for CPUs with only AVX2. There is no maintained thread, core, or processor affinity (hence my prior question). 50GHz Stepping: 0 CPU MHz: 2494. 1 SM = 4 CPU cores; 1 warp = 1 CPU SMT thread; 32 threads/warp = CPU SIMD unit with 32 lanes; 1 GPU CUDA core = 16-32 ALU datapaths (or less if SIMD datapath) Many CPU cores can issue 2-7 instructions per cycle. Rosuav (Chris Angelico) March 1, 2023, 7:22am 6. 64-bit Byte Order: Little Endian CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 2 Core(s) per socket: 4 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 60 Stepping: 3 CPU MHz: 3501. 优化方法请使用：AdamW8bit，（其它优化器选项感兴趣的可以自己尝试）thread imbalance, i. Is there a way i can find that all 32 processors are being used and how many threads are there in my linux box. NET 2. The command is as follows: mvn -T 4 clean install # Builds with 4 threads mvn -T 1C clean install # 1 thread per cpu core mvn -T 1. In this way we can achieve the advantage of both 1:1 and N:1 threading models. The threads per core can be found directly using the “ lscpu ” command, which gives all the CPU information. The good news is, figuring that out is extremely easy in Windows 10. For instance, a Power 8 processor with 12 cores can. More information please refer to this link. You can check this also using: # nproc --all 32Restricts node selection to nodes with at least the specified number of threads per core-w, --nodelist <host1,host2,. Glommio (pronounced glom-io or |glomjəʊ|) is a cooperative thread-per-core crate for Rust & Linux based on io_uring. set_property(“CPU”, {“INFERENCE_NUM_THREADS”: 20}) and change 20 to the number of cores in your. , 8 core) it will have 16 threads and vice-versa. Under the System section, you will see the number of cores listed next to the Processor field. Let's investigate my server to determine its number of CPUs. Here is what I see: 8. Instead, Tumbler focuses on dealing with load imbalance across CPUs because different threads impose different load on the CPU – this imbalance is present even when number of threads is a multiple of number of cores. SDXL LoRA, 30min training time, far more versatile than SD1. Increasing number of threads decreases cpu performance. That is excellent from app-perspective. In computing parlance, this can be seen as a system with 16 CPUs that lists CPUs by CPU number. Limits and requests for CPU resources are measured in cpu units. No. A thread is a set of instructions or code for the execution of concurrent programming. Allowing Go to use more CPU cores than you actually have won't help, as your system only has so many CPU cores. Often it’s not an issue because the workload executing on the threads is I/O bound. " On the next screen, you'll see many details about your CPU, including the number of cores it has. of threads to use (e. pt file You can try running it now with accelerate launch --num_cpu_threads_per_process 12 lora_train_command_line. Other Options ; precision ; The precision for merge calculation can be specified from float, fp16, and bf16. So you might stop seeing speedups long before you are “using” all your cores. Look at the OS system call reference manual. For the GTX 970 there are 13 Streaming Multiprocessors (SM) with 128 Cuda Cores each. Thread (s) per core: 2 Core (s) per socket: 12 Socket (s): 4. important: threads (HT) don't count! If you would do as you have mentioned then your ratio is 1:1. The WX models. With 4 CPUs each having 12 cores and 2 threads per core, your max thread count is 96. Mac OS has been slower to migrate to SMT than Windows. Operating Systems: Threads. , 2 cores) it will have 4 threads. 4-bit, 8-bit, and CPU inference through the transformers library ; Use llama. eg; "8 cores 16 threads" == 8 CPUs and 16 sets of registers (2 per core). so the result is correct. Btw, the ThreadPool has changed dramatically with . Therefore the max thread count is 96 and max core count is 48. If the threads do anything that requires waiting, then you'll have to experiment to determine the optimal number of. I’ve run a simple test cuda program with <<<256,256>>> execution configuration on GTX1080 ( 20 SM, 128 core per SM) and Nsight shows that 160/256 blocks are “running”, which means 160256 threads are running on 12820 cuda cores. One thread per core is the spot. py Follow the popups and make sure to select the upper folder, which holds the <number>_<name> subfolders when asked. In short: no guarantees how many threads will be run parallelly, but all of them will run concurrently. By default, the CPU is tuned for maximum throughput. If you have 4 cores and 2 sockets, then you have 8. NET 3. Open Task Manager (press Ctrl+Shift+Esc) Select Performance tab. Intel performance tools (Advisor et al. 16. CPU Scheduler – Allows a single CPU to share system resources between multiple processes. Training. For example if your system has 8 cores/16 threads, use -t 8. The MPI syntax you quote addresses processes (option np), or threads if you. Only if your application is highly unusual and spending 100% of its time using the CPU would limiting to one thread per core make sense. CPU Scheduler – Allows a single CPU to share system resources between multiple processes. For instance, a Power 8 processor with 12 cores. eg. SCK0. So the only way to measure relative performance is with a. The CPU Threads Utilization metric collects CPU thread diagnostics for Oracle Solaris and Linux targets, useful for analysis of multi-threaded CPUs. g. 9 (PSR is CPU id the thread is currently assigned to) you see that the threads are running on the same cpu core (because of GIL)is the correct way to request N cores for a job. top shows one “CPU” per logical CPU; on x86, that’s the product of the number of sockets in the system, by the number of physical cores per socket, by the number of threads per core. CPU options can only be specified during instance launch and cannot be modified after launch. 2. Total number of CPUs. For more , refer this answer, to get interpretation of /proc/cpuinfo refer thisHow effective it is depends on the type of threads (programs, sub-programs) you're running. Your answer depends upon what environment you are executing in. Without any additional or special hardware, this is equal to the core count. To get the Threads per core, use the following command: $ lscpu | grep Thread. for your purposes you have 4 cores which are capable of 2 threads per core. Then you would be able to run 2x4x2=16 processes (without oversubscription of resources, of courses). If you use CPU overcommitment in the configuration of your VMware virtual machines, keep in mind these values: 1:1 to 3:1 – There should be no problems in running VMs. Ideally DW component executes on CPU_INTENSIVE which has a limited number of threads ( 2 thread per core). Each CPU (logical core) gets its own set of registers. The amount of time spent by all CPUs in different frequencies for Oracle Solaris. The number of threads that can exist on the system is limited by the available memory (each thread requires a stack and a structure used by the OS to manage the thread), and possibly there is a limitation how many. Since there's no 10 core 10 thread CPU then you've got no reason to worry. --sockets-per-node=S: Number of sockets in a node to dedicate to a job (minimum)--cores-per-socket=C: Number of cores in a socket to dedicate to a job (minimum)--threads-per-core=T: Number of threads in a core to dedicate to a. CPU Thread Handling allows hosts to run VMs with a total number of processor cores greater than number of cores in the host.