Intel Corporation

Yoav Harel

Abhishek R Appu

Joydeep Ray

Altug Koker

Elmoustapha Ould-Ahmed-Vall

Prasoonkumar Surti

Subramaniam M Maiyuran

Vasanth Ranganathan

Varghese George

Scott R Janus

Lakshminarayanan Striramassarma

Mike MacPherson

Vikranth Vemulapalli

Arthur Hunter, Jr

Benjamin Pletcher

Carlos Nava Rodriguez

Valentin Andrei

Sungye Kim

Ashutosh Garg

Steven Spangler

William B Sadler

Murali Ramadoss

Kamal Sinha

Ben J Ashbaugh

Nicolas C Galoppo Von Borries

Aravindh V Anantaraman

Pattabhiraman K

Brent E Insko

Jonathan D Pearce

Liang Leon Peng

Marian Alin Petre

Shailesh Shah

Daniel Johnston

Andrei Valentin

Sanjeev S Jahagirdar

Michael Apodaca

Bhushan M Borole

Hema Chand Nalluri

Chandra S Gurram

Eric Finley

Subhajit Dasgupta

Vamsee Vardhan Chivukula

Joy Chandra

Prosun Chatterjee

Sudarshanram Shetty

Aditi Gautam

Jonathan Hersh

Bret Martin

Kenneth Brand

Benjamin R Pletcher

Embodiments described herein are generally directed facilitating out-of-order execution of GPU texture sampler operations. An embodiment of a method includes a texture sampler of a GPU maintaining (i) a latency queue operable to store information regarding a set of transactions associated with each of multiple texture sampler operations and (ii) multiple virtual channel (VC) queues each operable to store information regarding transactions for a respective single texture sampler operation at a time. Out-of-order processing of the texture sampler operations is facilitated by making use of the latency queue and the VC queues. For example, during a transaction processing interval, the availability of data in a cache for the transactions associated with each of the VC queues may be determined. A VC queue may be selected based on the determined availability of data. A transaction associated with a head of the selected VC queue may then be processed.

Out-of-order execution of graphics processing unit texture sampler operations

Methods, systems and apparatuses may provide for technology that reads data from a sampler feedback resource based on coordinates relative to a paired texture that was used to generate the sampler feedback data.

Read sampler feedback technology

Methods, systems and apparatuses may provide for hardware sampler technology that determines mip region dimensions of a feedback map based on a description of the feedback map, identifies accessed texels in a texture based on a view of a resource that is paired with the feedback map, and records the accessed texels in the feedback map based on the mip region dimensions.

Native sampler feedback technology

Embodiments described herein are generally directed to a local cache structure within a shared function of a 3D pipeline that facilitates efficient caching of resource state. In an example, the cache structure is maintained within a sub-core of a GPU. The local cache structure includes (i) an SC having entries each containing a state of a binded resource, and (ii) a DSAT having entries each containing an index into the SC. The DSAT is tagged by SBTO values representing addresses of entries of a binding table. A request, including information indicative of an SBTO pointing to an entry within the binding table, is received for a state of a particular binded resource being accessed by a shared function of the 3D pipeline. Based on the SBTO and during a single access to the cache structure, a determination is made regarding whether the state of the particular binded resource is present.

Efficient caching of resource state for a shared function of a three-dimensional pipeline of a graphics processing unit

Embodiments described herein include, software, firmware, and hardware logic that provides techniques to perform arithmetic on sparse data via a systolic processing unit. Embodiment described herein provided techniques to detect zero value elements within a vector or a set of packed data elements output by a processing resource and generate metadata to indicate a location of the zero value elements within the plurality of data elements.

Sparse optimizations for a matrix accelerator architecture

Dynamic routing of texture-load in graphics processing is described. An example of a processor includes one or more processing resources, the one or more processing resources to load a message including a texture load; a texture sampler and a data port; and a message router to route the texture load to a destination, wherein the destination may be either the texture sampler or the data port; wherein the message router includes arbitration circuitry to select the destination for the texture load, the arbitration circuitry to base selection of the destination at least in part on support by the data port for a format of a memory surface for the texture load; and a utilization metric for the data port representing availability of the data port.

Dynamic routing of texture loads in graphics processing

Systems and methods for improving cache efficiency and utilization are disclosed. In one embodiment, a graphics processor includes processing resources to perform graphics operations and a cache controller of a cache coupled to the processing resources. The cache controller is configured to control cache priority by determining whether default settings or an instruction will control cache operations for the cache.

Systems and methods for improving cache efficiency and utilization

Embodiments described herein include, software, firmware, and hardware logic that provides techniques to perform arithmetic on sparse data via a systolic processing unit. Embodiment described herein provided techniques to skip computational operations for zero filled matrices and sub-matrices. Embodiments additionally provide techniques to maintain data compression through to a processing unit. Embodiments additionally provide an architecture for a sparse aware logic unit.

Methods and apparatus relating to techniques for resource load balancing based on usage and/or power limits are described. In an embodiment, resource load balancing logic causes a first resource of a processor to operate at a first frequency and a second resource of the processor to operate at a second frequency. Memory stores a plurality of frequency values. The resource load balancing logic also selects the first frequency and the second frequency based on the stored plurality of frequency values. Operation of the first resource at the first frequency and the second resource at the second frequency in turn causes the processor to operate under a power budget. The resource load balancing logic causes change to the first frequency and the second frequency in response to a determination that operation of the processor is different than the power budget. Other embodiments are also disclosed and claimed.

Resource load balancing based on usage and power limits

Embodiments described herein include a graphics processing unit. The graphics processing unit includes a plurality of execution units. The graphics processing unit also includes a plurality of sampler units. Each sampler unit corresponds to a sampler dispatch logic unit and at least one execution unit, and the sampler dispatch logic units are used to network the plurality of sampler units.

Sampler load balancing

Multi-mode texture filters suitable for performing both bilinear filtering based on a fractional texture address and generating a weighted average of a group of texel values based on predetermined texel weighting coefficients as dependent on a filter mode signal. In embodiments, the weighted average may be accumulated over a variety of filter footprints. In embodiments, multi-mode texture filter logic includes a plurality of flexible filter blocks. In further embodiments, a pair of flexible filter blocks staged with each performing one lerp phase in the bilinear filter mode while a pair of flexible filter blocks in the flexible filter mode generate a weighted average over a pair of texels of a texel quad. In embodiments, each flexible filter block has a same microarchitecture, enabling an efficient utilization in either bilinear filter or flexible filter mode.

Flexible filter logic for multi-mode filtering of graphical texture data

Texture filter logic suitable for determining a minimum or maximum texel value from a plurality of texel values associated with a filter footprint of arbitrary shape and size. In embodiments, logic circuitry includes a plurality of min/max comparison block stages is configured to perform comparisons and determine a min/max value of predetermined number of texel groups. In embodiments, the logic circuitry further includes a number of min/max collectors to accommodate filter footprints having more texel groups than the predetermined number accommodated by the min/max comparison block stages. Iterative comparisons may be performed until all texel groups in the given footprint have been compared. In further embodiments, the logic circuitry outputs four min/max texel values, which may then be further processed with a final comparison stages to arrive at one min/max value for a footprint.

Minimum-maximum filtering of graphical texture data

Growing community of inventors

Carmichael, CA, United States of America

Yoav Harel