公开(公告)号：US20210117194A1

公开(公告)日：2021-04-22

申请号：US17133396

申请日：2020-12-23

Applicant: Intel Corporation

Inventor： Alexander F. HEINECKE ,  Robert VALENTINE ,  Mark J. CHARNEY ,  Raanan SADE ,  Menachem ADELMAN ,  Zeev SPERBER ,  Amit GRADSTEIN ,  Simon RUBANOVICH

IPC: G06F9/30 ,  G06F9/38

Abstract: Disclosed embodiments relate to systems and methods for performing 16-bit floating-point vector dot product instructions. In one example, a processor includes fetch circuitry to fetch an instruction having fields to specify an opcode and locations of first source, second source, and destination vectors, the opcode to indicate execution circuitry is to multiply N pairs of 16-bit floating-point formatted elements of the specified first and second sources, and accumulate the resulting products with previous contents of a corresponding single-precision element of the specified destination, decode circuitry to decode the fetched instruction, and execution circuitry to respond to the decoded instruction as specified by the opcode.

公开(公告)号：US20210019149A1

公开(公告)日：2021-01-21

申请号：US16729349

申请日：2019-12-28

Applicant: Intel Corporation

Inventor： ADARSH CHAUHAN ,  Franck SALA ,  Jayesh GAUR ,  Zeev SPERBER ,  Lihu RAPPOPORT ,  Adi YOAZ ,  Sreenivas SUBRAMONEY

IPC: G06F9/38 ,  G06F9/30

Abstract: Systems, methods, and apparatuses relating to hardware for auto-predication of critical branches. In one embodiment, a processor core includes a decoder to decode instructions into decoded instructions, an execution unit to execute the decoded instructions, a branch predictor circuit to predict a future outcome of a branch instruction, and a branch predication manager circuit to disable use of the predicted future outcome for a conditional critical branch comprising the branch instruction.

公开(公告)号：US20190339972A1

公开(公告)日：2019-11-07

申请号：US16474483

申请日：2017-07-01

Applicant: Intel Corporation

Inventor： Robert VALENTINE ,  Dan BAUM ,  Zeev SPERBER ,  Jesus CORBAL ,  Elmoustapha OULD-AHMED-VALL ,  Bret L. TOLL ,  Mark J. CHARNEY ,  Alexander HEINECKE

IPC: G06F9/30

Abstract: Embodiments detailed herein relate to matrix operations. In particular, tile diagonal support is described. For example, a processor is detailed having decode circuitry to decode an instruction having fields for an opcode, a source operand identifier, and a destination matrix operand identifier; and execution circuitry to execute the decoded instruction to write the identified source operand to each element along a main diagonal of the identified destination matrix operand.

公开(公告)号：US20240256276A1

公开(公告)日：2024-08-01

申请号：US18432317

申请日：2024-02-05

Applicant: Intel Corporation

Inventor： Robert VALENTINE ,  Menachem ADELMAN ,  Elmoustapha OULD-AHMED-VALL ,  Bret L. TOLL ,  Milind B. GIRKAR ,  Zeev SPERBER ,  Mark J. CHARNEY ,  Rinat RAPPOPORT ,  Jesus CORBAL ,  Stanislav SHWARTSMAN ,  Igor YANOVER ,  Alexander F. HEINECKE ,  Barukh ZIV ,  Dan BAUM ,  Yuri GEBIL ,  Raanan SADE

IPC: G06F9/30 ,  G06F7/485 ,  G06F7/487 ,  G06F7/76 ,  G06F9/38 ,  G06F17/16

CPC classification number: G06F9/30036 ,  G06F7/485 ,  G06F7/4876 ,  G06F7/762 ,  G06F9/3001 ,  G06F9/30032 ,  G06F9/30043 ,  G06F9/30109 ,  G06F9/30112 ,  G06F9/30134 ,  G06F9/30145 ,  G06F9/30149 ,  G06F9/3016 ,  G06F9/30185 ,  G06F9/30196 ,  G06F9/3818 ,  G06F9/3836 ,  G06F17/16 ,  G06F2212/454

Abstract: Embodiments detailed herein relate to matrix operations. In particular, the loading of a matrix (tile) from memory. For example, support for a loading instruction is described in at least a form of decode circuitry to decode an instruction having fields for an opcode, a source matrix operand identifier, and destination memory information, and execution circuitry to execute the decoded instruction to store each data element of configured rows of the identified source matrix operand to memory based on the destination memory information.

公开(公告)号：US20240184585A1

公开(公告)日：2024-06-06

申请号：US18436982

申请日：2024-02-08

Applicant: Intel Corporation

Inventor： Alexander HEINECKE ,  Menachem ADELMAN ,  Robert VALENTINE ,  Zeev SPERBER ,  Amit GRADSTEIN ,  Mark CHARNEY ,  Evangelos GEORGANAS ,  Dhiraj KALAMKAR ,  Christopher HUGHES ,  Cristina ANDERSON

IPC: G06F9/30

CPC classification number: G06F9/3016 ,  G06F9/30014 ,  G06F9/30036 ,  G06F9/30101

Abstract: Techniques for comparing BF16 data elements are described. An exemplary BF16 comparison instruction includes fields for an opcode, an identification of a location of a first packed data source operand, and an identification of a location of a second packed data source operand, wherein the opcode is to indicate that execution circuitry is to perform, for a particular data element position of the packed data source operands, a comparison of a data element at that position, and update a flags register based on the comparison.

公开(公告)号：US20220414182A1

公开(公告)日：2022-12-29

申请号：US17359519

申请日：2021-06-26

Applicant: Intel Corporation

Inventor： Menachem ADELMAN ,  Robert VALENTINE ,  Zeev SPERBER ,  Amit GRADSTEIN ,  Simon RUBANOVICH ,  Sagi MELLER ,  Christopher HUGHES ,  Evangelos GEORGANAS ,  Alexander HEINECKE ,  Mark CHARNEY

IPC: G06F17/16 ,  G06F7/487

Abstract: Techniques for matrix multiplication are described. In some examples, decode circuitry is to decode a single instruction having fields for an opcode, an indication of a location of a first source operand, an indication of a location of a second source operand, and an indication of a location of a destination operand, wherein the opcode is to indicate that execution circuitry is to at least convert data elements of the first and second source operands from a first floating point representation to a second floating point representation, perform matrix multiplication with the converted data elements, and accumulate results of the matrix multiplication in the destination operand in the first floating point representation; and the execution circuitry is to execute to the decoded instruction as specified by the opcode.

公开(公告)号：US20220326948A1

公开(公告)日：2022-10-13

申请号：US17851468

申请日：2022-06-28

Applicant: Intel Corporation

Inventor： Alexander F. HEINECKE ,  Robert VALENTINE ,  Mark J. CHARNEY ,  Raanan SADE ,  Menachem ADELMAN ,  Zeev SPERBER ,  Amit GRADSTEIN ,  Simon RUBANOVICH

IPC: G06F9/30 ,  G06F9/38

Abstract: Disclosed embodiments relate to systems and methods for performing instructions to convert to 16-bit floating-point format. In one example, a processor includes fetch circuitry to fetch an instruction having fields to specify an opcode and locations of a first source vector comprising N single-precision elements, and a destination vector comprising at least N 16-bit floating-point elements, the opcode to indicate execution circuitry is to convert each of the elements of the specified source vector to 16-bit floating-point, the conversion to include truncation and rounding, as necessary, and to store each converted element into a corresponding location of the specified destination vector, decode circuitry to decode the fetched instruction, and execution circuitry to respond to the decoded instruction as specified by the opcode.

公开(公告)号：US20210286620A1

公开(公告)日：2021-09-16

申请号：US17216566

申请日：2021-03-29

Applicant: Intel Corporation

Inventor： Alexander F. HEINECKE ,  Robert VALENTINE ,  Mark J. CHARNEY ,  Raanan SADE ,  Menachem ADELMAN ,  Zeev SPERBER ,  Amit GRADSTEIN ,  Simon RUBANOVICH

IPC: G06F9/30 ,  G06F9/38

Abstract: Disclosed embodiments relate to computing dot products of nibbles in tile operands. In one example, a processor includes decode circuitry to decode a tile dot product instruction having fields for an opcode, a destination identifier to identify a M by N destination matrix, a first source identifier to identify a M by K first source matrix, and a second source identifier to identify a K by N second source matrix, each of the matrices containing doubleword elements, and execution circuitry to execute the decoded instruction to perform a flow K times for each element (m, n) of the specified destination matrix to generate eight products by multiplying each nibble of a doubleword element (M,K) of the specified first source matrix by a corresponding nibble of a doubleword element (K,N) of the specified second source matrix, and to accumulate and saturate the eight products with previous contents of the doubleword element.

公开(公告)号：US20200310793A1

公开(公告)日：2020-10-01

申请号：US16369743

申请日：2019-03-29

Applicant: Intel Corporation

Inventor： Simon RUBANOVICH ,  Amit GRADSTEIN ,  Zeev SPERBER

IPC: G06F9/30

Abstract: Disclosed embodiments relate to an interleaved pipeline of floating-point (FP) adders. In one example, a processor is to execute an instruction specifying an opcode and locations of a M by K first source matrix, a K by N second source matrix, and a M by N destination matrix, the opcode indicating execution circuitry, for each FP element (M, N) of the destination matrix, is to: launch K instances of a pipeline having a first, MULTIPLY stage, during which a FP element (M, K) of the first source matrix and a corresponding FP element (K, N) of the second source matrix are multiplied; concurrently, in an EXPDIFF stage, determine an exponent difference between the product and a previous FP value of the element (M, N) of the destination matrix; and in a second, ADD-BYPASS stage, accumulate the product with the previous FP value and, concurrently, bypassing the accumulated sum to a subsequent pipeline instance.

公开(公告)号：US20200310757A1

公开(公告)日：2020-10-01

申请号：US16369629

申请日：2019-03-29

Applicant: Intel Corporation

Inventor： Amit GRADSTEIN ,  Simon RUBANOVICH ,  Zeev SPERBER

IPC: G06F7/544 ,  G06F7/483 ,  G06F9/30

Abstract: Disclosed embodiments relate to performing floating-point (FP) arithmetic. In one example, a processor is to decode an instruction specifying locations of first, second, and third floating-point (FP) operands and an opcode calling for accumulating a FP product of the first and second FP operands with the third FP operand, and execution circuitry to, in a first cycle, generate the FP product having a Fuzzy-Jbit format comprising a sign bit, a 9-bit exponent, and a 25-bit mantissa having two possible positions for a JBit and, in a second cycle, to accumulate the FP product with the third FP operand, while concurrently, based on Jbit positions of the FP product and the third FP operand, determining an exponent adjustment and a mantissa shift control of a result of the accumulation, wherein performing the exponent adjustment concurrently enhances an ability to perform the accumulation in one cycle.