iwia021h@testfront1:~/MD-Bench/asm$ iaca -arch SKX force_soa_lt8_markers.o Intel(R) Architecture Code Analyzer Version - v3.0-28-g1ba2cbb build date: 2017-10-23;16:42:45 Analyzed File - force_soa_lt8_markers.o Binary Format - 64Bit Architecture - SKX Analysis Type - Throughput Throughput Analysis Report -------------------------- Block Throughput: 35.00 Cycles Throughput Bottleneck: Backend Loop Count: 22 Port Binding In Cycles Per Iteration: -------------------------------------------------------------------------------------------------- | Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | -------------------------------------------------------------------------------------------------- | Cycles | 20.0 0.0 | 4.0 | 13.0 13.0 | 13.0 13.0 | 0.0 | 20.0 | 4.0 | 0.0 | -------------------------------------------------------------------------------------------------- DV - Divider pipe (on port 0) D - Data fetch pipe (on ports 2 and 3) F - Macro Fusion with the previous instruction occurred * - instruction micro-ops not bound to a port ^ - Micro Fusion occurred # - ESP Tracking sync uop was issued @ - SSE instruction followed an AVX256/AVX512 instruction, dozens of cycles penalty is expected X - instruction not supported, was not accounted in Analysis | Num Of | Ports pressure in cycles | | | Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | ----------------------------------------------------------------------------------------- | 1 | | 1.0 | | | | | | | imul r8, r12 | 1 | | | | | | 1.0 | | | vbroadcastsd zmm9, xmm9 | 1 | | | | | | 1.0 | | | vbroadcastsd zmm2, xmm8 | 1 | | | | | | 1.0 | | | vbroadcastsd zmm10, xmm10 | 1 | | 1.0 | | | | | | | sub r13d, ebx | 1 | | 1.0 | | | | | | | add r8, r11 | 1 | | | | | | 1.0 | | | vpbroadcastd ymm0, r13d | 1 | | | | | | 1.0 | | | vpcmpgtd k5, ymm0, ymm17 | 1 | | | | | | | 1.0 | | movsxd rbx, ebx | 1* | | | | | | | | | vmovaps zmm4, zmm19 | 1 | 1.0 | | | | | | | | kmovw k2, k5 | 1* | | | | | | | | | vmovaps zmm3, zmm19 | 2 | | 1.0 | 1.0 1.0 | | | | | | vmovdqu32 ymm1{k5}{z}, ymmword ptr [r8+rbx*4] | 1 | 1.0 | | | | | | | | kmovw k1, k5 | 1* | | | | | | | | | vmovaps zmm5, zmm19 | 1 | 1.0 | | | | | | | | kmovw k3, k5 | 5^ | 2.0 | | 4.0 4.0 | 4.0 4.0 | | | 1.0 | | vgatherdpd zmm5, k3, zmmword ptr [rsi+ymm1*8] | 5^ | 1.0 | | 4.0 4.0 | 4.0 4.0 | | 1.0 | 1.0 | | vgatherdpd zmm4, k2, zmmword ptr [rax+ymm1*8] | 5^ | 1.0 | | 4.0 4.0 | 4.0 4.0 | | 1.0 | 1.0 | | vgatherdpd zmm3, k1, zmmword ptr [rdx+ymm1*8] | 1 | 1.0 | | | | | | | | vsubpd zmm30, zmm10, zmm5 | 1 | | | | | | 1.0 | | | vsubpd zmm28, zmm9, zmm4 | 1 | 1.0 | | | | | | | | vsubpd zmm27, zmm2, zmm3 | 1 | | | | | | 1.0 | | | vmulpd zmm26, zmm28, zmm28 | 1 | 1.0 | | | | | | | | vfmadd231pd zmm26, zmm27, zmm27 | 1 | | | | | | 1.0 | | | vfmadd231pd zmm26, zmm30, zmm30 | 3 | 2.0 | | | | | 1.0 | | | vrcp14pd zmm25, zmm26 | 1 | | | | | | 1.0 | | | vcmppd k6{k5}, zmm26, zmm16, 0x1 | 1 | | | | | | 1.0 | | | vfpclasspd k0, zmm25, 0x1e | 1* | | | | | | | | | vmovaps zmm6, zmm26 | 2^ | 1.0 | | | 1.0 1.0 | | | | | vfnmadd213pd zmm6, zmm25, qword ptr [rip]{1to8} | 1 | 1.0 | | | | | | | | knotw k4, k0 | 1 | | | | | | 1.0 | | | vmulpd zmm8, zmm6, zmm6 | 1 | 1.0 | | | | | | | | vfmadd213pd zmm25{k4}, zmm6, zmm25 | 1 | | | | | | 1.0 | | | vfmadd213pd zmm25{k4}, zmm8, zmm25 | 1 | 1.0 | | | | | | | | vmulpd zmm20, zmm25, zmm15 | 1 | | | | | | 1.0 | | | vmulpd zmm22, zmm25, zmm14 | 1 | 1.0 | | | | | | | | vmulpd zmm23, zmm25, zmm20 | 1 | | | | | | 1.0 | | | vmulpd zmm21, zmm25, zmm23 | 1 | 1.0 | | | | | | | | vfmsub213pd zmm25, zmm23, zmm7 | 1 | | | | | | 1.0 | | | vmulpd zmm24, zmm21, zmm22 | 1 | 1.0 | | | | | | | | vmulpd zmm29, zmm24, zmm25 | 1 | | | | | | 1.0 | | | vfmadd231pd zmm13{k6}, zmm29, zmm27 | 1 | 1.0 | | | | | | | | vfmadd231pd zmm12{k6}, zmm29, zmm28 | 1 | | | | | | 1.0 | | | vfmadd231pd zmm11{k6}, zmm29, zmm30 Total Num Of Uops: 60 Analysis Notes: Backend allocation was stalled due to unavailable allocation resources. There were bubbles in the frontend.