VDPBF16PS (ZMM, ZMM, ZMM)

Operands

• Operand 1 (r/w): Register (ZMM0, ZMM1, ZMM2, ZMM3, ZMM4, ZMM5, ZMM6, ZMM7, ZMM8, ZMM9, ZMM10, ZMM11, ZMM12, ZMM13, ZMM14, ZMM15, ZMM16, ZMM17, ZMM18, ZMM19, ZMM20, ZMM21, ZMM22, ZMM23, ZMM24, ZMM25, ZMM26, ZMM27, ZMM28, ZMM29, ZMM30, ZMM31)
• Operand 2 (r): Register (ZMM0, ZMM1, ZMM2, ZMM3, ZMM4, ZMM5, ZMM6, ZMM7, ZMM8, ZMM9, ZMM10, ZMM11, ZMM12, ZMM13, ZMM14, ZMM15, ZMM16, ZMM17, ZMM18, ZMM19, ZMM20, ZMM21, ZMM22, ZMM23, ZMM24, ZMM25, ZMM26, ZMM27, ZMM28, ZMM29, ZMM30, ZMM31)
• Operand 3 (r): Register (ZMM0, ZMM1, ZMM2, ZMM3, ZMM4, ZMM5, ZMM6, ZMM7, ZMM8, ZMM9, ZMM10, ZMM11, ZMM12, ZMM13, ZMM14, ZMM15, ZMM16, ZMM17, ZMM18, ZMM19, ZMM20, ZMM21, ZMM22, ZMM23, ZMM24, ZMM25, ZMM26, ZMM27, ZMM28, ZMM29, ZMM30, ZMM31)

Available performance data

• Emerald Rapids
• Alder Lake-P
• AMD Zen 5
• AMD Zen 4

Emerald Rapids

• Measurements
• Latencies
  • Latency operand 1 → 1: 8
  • Latency operand 2 → 1: 8
  • Latency operand 3 → 1: 8
• Throughput
  • Computed from the port usage: 2.00
  • Measured (loop): 2.00
  • Measured (unrolled): 2.00
• Number of μops
  • Executed: 4
  • Retire slots: 4
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 0
  • Requires the complex decoder (2 other instructions can be decoded with simple decoders in the same cycle)
• Port usage: 2*p05+2*p5

Alder Lake-P

• Measurements
• Latencies
  • Latency operand 1 → 1: 8
  • Latency operand 2 → 1: 8
  • Latency operand 3 → 1: 8
• Throughput
  • Computed from the port usage: 2.00
  • Measured (loop): 2.00
  • Measured (unrolled): 2.00
• Number of μops
  • Executed: 4
  • Retire slots: 4
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 0
  • Requires the complex decoder (2 other instructions can be decoded with simple decoders in the same cycle)
• Port usage: 2*p0+2*p5

AMD Zen 5

• Measurements
• Latencies
  • Latency operand 1 → 1: 5
  • Latency operand 2 → 1: 5
  • Latency operand 3 → 1: 5
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 1
• Port usage: 1*FP01
• Documentation
• Latency: 6
• Throughput: 0.50
• Number of μops: 1
• Port usage: FP0/1

AMD Zen 4

• Measurements
• Latencies
  • Latency operand 1 → 1: 6
  • Latency operand 2 → 1: 6
  • Latency operand 3 → 1: 6
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 1.00
  • Measured (unrolled): 1.00
• Number of μops
  • Executed: 1
• Port usage: 1*FP01
• Documentation
• Latency: 6
• Throughput: 1.00
• Number of μops: 1
• Port usage: FP0/1