Nvidia and Intel Xeon-based servers accelerate AI, HPC and cloud computing

Servers introduced by Super Micro Computer to its GPU (graphics processing unit) system portfolio are based on Nvidia’s HGX A100 4-GPU and third generation Intel Xeon Scalable processors.

The servers are designed for demanding AI (artificial intelligence) applications. The 2U Nvidia HGX A100 4-GPU system is suitable for deploying modern AI training clusters at scale with high speed CPU-GPU and GPU-GPU interconnects. The Supermicro 2U 2-Node system reduces energy usage and costs by sharing power supplies and cooling fans, reducing carbon emissions. It also supports a range of discrete GPU accelerators, which can be matched to the workload. Both systems include hardware security features enabled by the latest Intel Software Guard Extensions (Intel SGX).

“We can offer customers Nvidia HGX A100 (code name Redstone) 4-GPU accelerators for AI and HPC workloads in dense 2U form factors,” said Charles Liang, president and CEO, Supermicro.  He added that the 2U 2-Node system is designed to share power and cooling components which reduce opex and the impact on the environment,” he added.

The 2U Nvidia HGX A100 server is based on the third generation Intel Xeon Scalable processors with Intel Deep Learning Boost technology. It is optimised for analytics, training, and inference workloads. The system can deliver up to 2.5petaflops of AI performance, with four A100 GPUs interconnected with Nvidia NVLink, providing up to 320Gbyte of GPU memory. The system is up to four times faster than the previous generation GPUs for complex conversational AI models like BERT large inference and delivers up to three times performance boost for BERT large AI training.

Thermal and cooling designs make these systems suitable for high performance clusters where node density and power efficiency are priorities, says the company. Liquid cooling is also available, resulting in further opex savings. Intel Optane Persistent Memory (PMem) is also supported, enabling significantly larger models to be held in memory, close to the CPU, before processing on the GPUs.

For applications that require multi-system interaction, the system can also be equipped with four Nvidia ConnectX-6 200Gbits per second InfiniBand cards to support GPUDirect RDMA with a 1:1 GPU-to-DPU ratio.

The new 2U 2-Node is an energy-efficient resource-saving architecture designed for each node to support up to three double-width GPUs. Each node also features a single third generation Intel Xeon Scalable processor with up to 40 cores and built-in AI and HPC (high performance computing) acceleration. AI, rendering, and VDI applications will benefit from this balance of CPUs and GPUs, says Supermicro. Equipped with its I/O Module (AIOM) expansion slots, the system can also process massive data flow for demanding AI/ML (machine learning) applications, deep learning training, and inferencing while securing the workload and learning models. It is also suiteable for multi-instance high-end cloud gaming and many other compute-intensive VDI applications. In addition, virtual content delivery networks (vCDNs) will be able to satisfy increasing demands for streaming services, said Supermicro. Power supply redundancy is built-in, as either node can use the adjacent node’s power supply in the event of a failure.

http://www.supermicro.com

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CC stepper motor driver IC does not need external sense resistor

Stepping motor driver ICs from Toshiba Electronics Europe now include the B67S539FTG. Housed in a 5.0 x 5.0mm QFN32 package, it operates without an external sense resistor and is integrated in the Stepper 17 Click board from Mikroe.

The TB67S539FTG is intended for a range of constant current (CC) control stepper motor applications including those found in office automation, commercial and industrial equipment. It can also be used in surveillance cameras and projectors.

The IC is based on Toshiba’s latest BiCD process and can drive bipolar stepping motors up to 40V and up to 2.0A. The integrated H-bridge circuit for motor control uses an Nch/Nch configuration and has a built-in charge pump circuit for output stage control.

The current detector is integrated within the QFN32 package, removing the need for an external current sense resistor. A capacitor for the charge pump is also integrated. The level of integration reduces the required PCB space significantly, says Toshiba.

The output stage (covering the upper and lower transistor) has an RDS(on) of just 0.8 Ohm. This ensures efficient operation and reduces heat generation during use. In sleep mode, the device draws a maximum current of 1.0 microA.

The IC is in mass production and shipping now. The compact Stepper 17 Click add-on board, created in partnership with Mikroe, is supported by a mikroSDK-compliant library.

Toshiba Electronics Europe is the European electronic components business of Toshiba Electronic Devices and Storage. TEE offers European consumers and businesses a variety of innovative hard disk drive (HDD) products and semiconductors for automotive, industrial, IoT, motion control, telecomms, networking, consumer and white goods applications. The company’s portfolio encompasses power semiconductors and other discrete devices ranging from diodes to logic ICs, optical semiconductors as well as microcontrollers and application specific standard products (ASSPs).

TEE has headquarters in Düsseldorf, Germany, with branch offices in France, Italy, Spain, Sweden and the United Kingdom providing marketing, sales and logistics services.

http://www.toshiba.semicon-storage.com

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Renesas bases RA2E2 microcontroller family on Arm Cortex-M23 core

For small and energy-sensitive IoT, wearable, medical, industrial automation, consumer and home appliance applications, Renesas offers the RA2E2 microcontroller group. It is based on the Arm Coretex-M23 core and is the latest addition to the 32-bit RA family.

The family of microcontrollers is claimed to offers a combination of low power consumption, a set of peripherals targeted at IoT endpoint applications and space-saving packaging options including a tiny 16-pin WLCSP (wafer level chip scale package) measuring only 1.87 x 1.84mm. The 48MHz RA2E2 family is claimed to offer the industry’s lowest operating power in their class, consuming only 81microA/MHz in active mode with software standby current of only 200nA with fast wake up. They also support a wide temperature range of Ta = -40/+125 degrees C for harsh IoT operating environments. The RA2E2 microcontrollers support an I3C bus interface and integrate cost-saving peripheral functions, including an on-chip oscillator with precision of +/- one per cent, power on reset, low voltage detector, EEPROM and a temperature sensor.

The RA2E2 Group includes nine devices, spanning from 16- to 24-pin packages, and from 16 to 64kbyte of flash memory and 8kbyte of SRAM. The devices also include 2kbyte of data flash memory, which is atypical in low-pin count devices, says Renesas. They are also claimed to be the only microcontrollers in their class to offer an I3C bus interface, delivering high-speed communications of 4.6Mbits per second while significantly reducing power consumption. Security features include a cryptography accelerator (AES256/128), a true random number generator (TRNG) and memory protection units.

The RA2E2 group is available today. Renesas is also offering the EK-RA2E2 evaluation kit.

The Renesas RA family includes over 160 parts ranging from 48 to 200MHz. They have a wide range of communications and security options, including Arm TrustZone technology. All RA devices are supported by the Renesas Flexible Software Program (FSP) that includes drivers and middleware to ease the implementation of communications and security. The FSP’s graphical user interface (GUI) simplifies and accelerates the development process, says Renesas. It enables flexible use of legacy code as well as easy compatibility and scalability with other RA devices. Designers using FSP also have access to the Arm ecosystem and tools as well as Renesas’ partner network.

http://www.renesas.com

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Dual MOSFETs use precision process for low on resistance

Dual MOSFETs for driving motors in base stations (cooling fans) and industrial applications such as factory automation equipment, including robots, requiring 24V input are available from Rohm Semiconductor.

MOSFETs are increasingly required to ensure sufficient margin against voltage fluctuations by providing 40V and 60V withstand voltages to support 24V input required for motors used in industrial equipment and base stations. They are expected to deliver higher speed switching with lower on resistance to improve the efficiency and miniaturisation of motors.

Rohm’s sixth generation 40V/60V MOSFETs use precision processes for the Nch MOSFETs. The QH8Mx5/SH8Mx5 series has dual-MOSFET products (Nch+Pch) featuring ±40V/±60V withstand voltages. According to Rohm, this combination results in dual Nch+Pch MOSFETs that deliver the ±40V/±60V withstand voltage required for 24V input. The company has also developed the +40V/+60V QH8Kxx/SH8Kxx (Nch+Nch) series to support a wider range of needs. There are 12 models in total, made up of Nch+Pch and Nch+Nch devices.

The QH8Mx5/SH8Mx5 series achieves on resistance that is 61 per cent lower than the Pch MOSFETs in dual MOSFETs products in the ±40V class. This contributes to significantly lower power consumption in a variety of applications. Integrating two devices into a single package reduces mounting area and decreases the workload required for component selection (combining Nch and Pch), reports Rohm.

Rohm Semiconductor develops and manufactures a wide product range from SiC diodes and MOSFETs, analogue ICs such as gate drivers and power management ICs to power transistors and diodes to passive components.

The company has manufacturing plants in Japan, Korea, Malaysia, Thailand, the Philippines, and China. Lapis Technology (former OKI Semiconductor), SiCrystal GmbH and Kionix are companies of the Rohm Semiconductor Group.

Rohm Semiconductor Europe has its head office near Dusseldorf serving the EMEA region (Europe, Middle East and Africa).

http://www.rohm.com/eu

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