Abstract: A sending networking device includes one or more processors, and memory storing one or more software applications which, when executed by any combination of the one or more processors performs an operation. The operation includes determining whether an explicit congestion notification (ECN) is marked on an acknowledgement (ACK), determining whether a measured delay is greater than a target delay, and upon determining that the ECN is not marked and that the measured delay is greater than the target delay, additively increasing a transmission parameter.

Abstract: A sending networking device includes one or more processors, and memory storing one or more software applications which, when executed by any combination of the one or more processors performs an operation. The operation includes determining whether an explicit congestion notification (ECN) is marked on an acknowledgement (ACK), determining whether a measured delay is less than a target delay, and upon determining that the ECN is not marked and that the measured delay is less than the target delay, proportionally increasing a transmission parameter based on a difference between the target delay and the measured delay.

Abstract: Embodiments herein describe throttling traffic using an achieved bandwidth delay product (BDP). As a sending device receives acknowledgments (ACKs) from a receiving device, the sending device determines whether the ACKs are marked to indicate the corresponding packet experienced congestion in the network. In addition, the sending device determines a delay associated with the packet being transmitted from the sending device to the receiving device. If this delay is much greater than a target delay threshold and the ACK indicates there was, then a transmission limit (e.g., a congestion control window size or a transmission control rate) is set based on an achieved BDP.

Abstract: Embodiments herein relate to a NIC providing more bandwidth to deliver a packet that is part of a lower hierarchical level of a collective algorithm than a packet that is part of a higher hierarchical level of the collective algorithm, when both packets are ready for transmission. The NIC can allocate an appropriate amount of bandwidth to each packet that ensures the delivery of the packet associated with a respectively lower hierarchical level is prioritized over the packet associated with a respectively higher hierarchical level, which can resolve data dependencies and result in faster execution of the collective algorithm.

Abstract: An apparatus and method for imaging includes an imaging system formed of a movable objective stage proximal to a sample and positioned for providing an excitation beam onto and for capturing an emission from the sample. The movable objective stage includes an optical lens apparatus and a turn reflector optically coupled to the imaging optics, where at least one of the optical lens apparatus and the turn reflector are movable relative to one another for scanning the sample, and wherein the movement is achieved while maintaining a substantially fixed optical path length between the optical lens apparatus and a fixed plane in a fixed imaging optics stage.

Abstract: Embodiments herein describe tracking the number of out of order packets that have been received at a receiver (RX) from a particular transmitter (TX). In one embodiment, the RX maintains a packet tracking bitmap that starts with the expected packet sequence number (EPSN) which is the next (sequential) PSN that should be received at the RX. The RX can use acknowledgement packets to transmit the bitmap to the TX so it knows which OOO packets have been received at the RX. However, the bitmap may be too large to fit into one ACK the entire bitmap, which means segments of the bitmap may be transmitted to the TX using multiple ACKs. As such, in the embodiments herein, the RX can also include a total count of the received OOO packets in each ACK.

Abstract: An apparatus and method for imaging includes an imaging system formed of a movable objective stage proximal to a sample and positioned for providing an excitation beam onto and for capturing an emission from the sample. The movable objective stage includes an optical lens apparatus and a turn reflector optically coupled to the imaging optics, where at least one of the optical lens apparatus and the turn reflector are movable relative to one another for scanning the sample, and wherein the movement is achieved while maintaining a substantially fixed optical path length between the optical lens apparatus and a fixed plane in a fixed imaging optics stage.

Abstract: The subject technology relates to the management of a shared buffer memory in a network switch. Systems, methods, and machine readable media are provided for receiving a data packet at a first network queue from among a plurality of network queues, determining if a fill level of a queue in a shared buffer of the network switch exceeds a dynamic queue threshold, and in an event that the fill level of the shared buffer exceeds the dynamic queue threshold, determining if a fill level of the first network queue is less than a static queue minimum threshold.

Abstract: Imaging systems are related systems and methods are disclosed. In accordance with a first implementation, an apparatus includes or comprises a system that includes or comprises a flow cell interface to receive a flow cell cartridge assembly; and an imaging system. The imaging system includes or comprises an imaging device; an optical assembly; a housing carrying the imaging device and the optical assembly; a stage assembly coupled to the housing and comprising an x-stage and a y-stage; and a light source assembly to emit a beam that is received by the optical assembly. The stage assembly moves the housing relative to the flow cell interface to allow the imaging device to obtain image data from the flow cell cartridge assembly.

Abstract: The subject technology relates to the management of a shared buffer memory in a network switch. Systems, methods, and machine readable media are provided for receiving a data packet at a first network queue from among a plurality of network queues, determining if a fill level of a queue in a shared buffer of the network switch exceeds a dynamic queue threshold, and in an event that the fill level of the shared buffer exceeds the dynamic queue threshold, determining if a fill level of the first network queue is less than a static queue minimum threshold.

Abstract: An imaging system includes a focus tracking module including: a light source to project a first pair of spots on a sample; and a first image sensor to obtain one or more first images of the first pair of spots; a second image sensor to obtain one or more second images of the sample; one or more mirrors optically coupled to the second image sensor, the one or more mirrors positioned in an optical path from the sample to the second image sensor; and a controller to: determine, using at least a first separation distance measurement of the first pair of spots from the one or more first images, a first sample tilt of the sample about a first axis of the imaging system; and actuate, based at least on the first sample tilt, the one or more mirrors to offset the first sample tilt about the first axis.

Abstract: An apparatus includes a sample stage region, an optical assembly, and a camera assembly. The optical assembly includes an objective element, a tube lens, and a compensating element. The objective element provides a field of view. at least a portion of the sample stage region is within the field of view. The objective element has a variable astigmatism. The tube lens is configured to receive light transmitted through the objective element and further transmit the light through an image space. The compensating element is in the image space. The compensating element is configured to induce a second astigmatism. The second astigmatism is configured to offset the variable astigmatism. The camera assembly is configured to receive light transmitted from the compensating assembly.

Abstract: An apparatus and method for imaging includes an imaging system formed of a movable objective stage proximal to a sample and positioned for providing an excitation beam onto and for capturing an emission from the sample. The movable objective stage includes an optical lens apparatus and a turn reflector optically coupled to the imaging optics, where at least one of the optical lens apparatus and the turn reflector are movable relative to one another for scanning the sample, and wherein the movement is achieved while maintaining a substantially fixed optical path length between the optical lens apparatus and a fixed plane in a fixed imaging optics stage.

Abstract: An apparatus and method for imaging includes an imaging system formed of a movable objective stage proximal to a sample and positioned for providing an excitation beam onto and for capturing an emission from the sample. The movable objective stage includes an optical lens apparatus and a turn reflector optically coupled to the imaging optics, where at least one of the optical lens apparatus and the turn reflector are movable relative to one another for scanning the sample, and wherein the movement is achieved while maintaining a substantially fixed optical path length between the optical lens apparatus and a fixed plane in a fixed imaging optics stage.

Abstract: This disclosure provides methods and systems for reducing congestion in RoCEv2 networks. The method is configured to operate large-scale in data centers on traffic flowing from a sender node to a receiver node. The method described has three stages: a fast start stage, a transition stage, and a regulation stage. In the fast start stage, the sender sends data to the receiver at a fast initial rate. This may continue until the receiver observes a congestion event. When this happens, the sender reduces the data transfer rate as the method enters the transition stage. From a reduced rate, the method enters the regulation stage, where the rate is increased using a combination of a feedback control loop and an additive increase multiplicative decrease (AIMD) algorithm.

Abstract: A method is used to generate a report presenting parameter values corresponding to a structured illumination microscopy (SIM) optical system. The parameter values are based at least in part on the performed modulation calculation corresponding to an image set captured with the SIM optical system. A minimum FWHM slice is identified, based at least in part on an average FWHM value across the images in the first image set. Parameter estimation is performed on the identified minimum FWHM slice. Best in-focus parameters are identified based at least in part on the performed estimation. A phase estimate is performed for each image in the set. A modulation calculation is performed based at least in part on the identified best in-focus parameters. The report is based at least in part on the performed modulation calculation.

Abstract: The subject technology relates to the management of a shared buffer memory in a network switch. Systems, methods, and machine readable media are provided for receiving a data packet at a first network queue from among a plurality of network queues, determining if a fill level of a queue in a shared buffer of the network switch exceeds a dynamic queue threshold, and in an event that the fill level of the shared buffer exceeds the dynamic queue threshold, determining if a fill level of the first network queue is less than a static queue minimum threshold.

Abstract: The subject technology relates to the management of a shared buffer memory in a network switch. Systems, methods, and machine readable media are provided for receiving a data packet at a first network queue from among a plurality of network queues, determining if a fill level of a queue in a shared buffer of the network switch exceeds a dynamic queue threshold, and in an event that the fill level of the shared buffer exceeds the dynamic queue threshold, determining if a fill level of the first network queue is less than a static queue minimum threshold.

Abstract: An apparatus and method for imaging includes an imaging system formed of a movable objective stage proximal to a sample and positioned for providing an excitation beam onto and for capturing an emission from the sample. The movable objective stage includes an optical lens apparatus and a turn reflector optically coupled to the imaging optics, where at least one of the optical lens apparatus and the turn reflector are movable relative to one another for scanning the sample, and wherein the movement is achieved while maintaining a substantially fixed optical path length between the optical lens apparatus and a fixed plane in a fixed imaging optics stage.

Abstract: The subject technology relates to the management of a shared buffer memory in a network switch. Systems, methods, and machine readable media are provided for receiving a data packet at a first network queue from among a plurality of network queues, determining if a fill level of a queue in a shared buffer of the network switch exceeds a dynamic queue threshold, and in an event that the fill level of the shared buffer exceeds the dynamic queue threshold, determining if a fill level of the first network queue is less than a static queue minimum threshold.