将taskset -c 1与opencl程序一起使用，它的运行速度与四核计算机中不使用它的速度相同。但是任务集的负载是13％而没有50％。
我在Fedora 20中使用AMD驱动程序13.12，遇到太多问题（Fedora不支持rd opencl，AMD驱动程序不编译，需要第三部分补丁）。
系统有3个GPU，我试图将一个GPU的中断分配给一个CPU核心。 问题是我无法回复/ proc / irq / 60 /
中的smp_affinityCPU0 CPU1 CPU2 CPU3 0: 125 0 0 0 IO-APIC-edge timer 1: 3 3 2 2 IO-APIC-edge i8042 7: 1 0 0 0 IO-APIC-edge 8: 0 0 1 0 IO-APIC-edge rtc0 9: 0 0 0 0 IO-APIC-fasteoi acpi 14: 20553 19951 18934 23545 IO-APIC-edge pata_atiixp 15: 0 0 0 0 IO-APIC-edge pata_atiixp 16: 209 210 333 254 IO-APIC-fasteoi snd_hda_intel 17: 0 0 0 0 IO-APIC-fasteoi ehci_hcd:usb1, ehci_hcd:usb2 18: 1 1 1 0 IO-APIC-fasteoi ohci_hcd:usb3, ohci_hcd:usb4, ohci_hcd:usb5 40: 0 0 0 0 PCI-MSI-edge ahci 41: 4 4 3 5 PCI-MSI-edge xhci_hcd 42: 0 0 0 0 PCI-MSI-edge xhci_hcd 43: 0 0 0 0 PCI-MSI-edge xhci_hcd 44: 0 0 0 0 PCI-MSI-edge xhci_hcd 45: 0 0 0 0 PCI-MSI-edge xhci_hcd 46: 0 0 0 0 PCI-MSI-edge xhci_hcd 47: 0 0 0 0 PCI-MSI-edge xhci_hcd 48: 0 0 0 0 PCI-MSI-edge xhci_hcd 49: 0 0 0 0 PCI-MSI-edge xhci_hcd 50: 0 0 0 0 PCI-MSI-edge xhci_hcd 51: 0 0 0 0 PCI-MSI-edge xhci_hcd 52: 0 0 0 0 PCI-MSI-edge xhci_hcd 53: 0 0 0 0 PCI-MSI-edge xhci_hcd 54: 0 0 0 0 PCI-MSI-edge xhci_hcd 55: 0 0 0 0 PCI-MSI-edge xhci_hcd 56: 260453 27 39686 10222 PCI-MSI-edge p19p1 57: 30 29 28 31 PCI-MSI-edge snd_hda_intel 58: 30 29 29 30 PCI-MSI-edge snd_hda_intel 59: 30 30 29 29 PCI-MSI-edge snd_hda_intel 60: 376820 387077 422262 414046 PCI-MSI-edge fglrx[0]@PCI:1:0:0 61: 233781 260237 282034 273928 PCI-MSI-edge fglrx[1]@PCI:2:0:0 62: 325068 337322 385699 381124 PCI-MSI-edge fglrx[2]@PCI:3:0:0 NMI: 109 466 134 132 Non-maskable interrupts LOC: 1455844 4537211 1861268 1830786 Local timer interrupts SPU: 0 0 0 0 Spurious interrupts PMI: 109 466 134 132 Performance monitoring interrupts IWI: 48127 24519 17582 13174 IRQ work interrupts RTR: 0 0 0 0 APIC ICR read retries RES: 33436070 33287609 27497110 27413290 Rescheduling interrupts CAL: 1727 1523 1401 1314 Function call interrupts TLB: 416983 448396 436569 455603 TLB shootdowns TRM: 0 0 0 0 Thermal event interrupts THR: 0 0 0 0 Threshold APIC interrupts MCE: 0 0 0 0 Machine check exceptions MCP: 18 18 18 18 Machine check polls
Linux * 3.12.6-300.fc20.x86_64 #1 SMP Mon Dec 23 16:44:31 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
display: :0.0 screen: 0 OpenGL vendor string: Advanced Micro Devices, Inc. OpenGL renderer string: AMD Radeon R9 200 Series OpenGL version string: 4.3.12618 Compatibility Profile Context 13.251 display: :0.0 screen: 1 OpenGL vendor string: Advanced Micro Devices, Inc. OpenGL renderer string: AMD Radeon R9 200 Series OpenGL version string: 4.3.12618 Compatibility Profile Context 13.251 display: :0.0 screen: 2 OpenGL vendor string: Advanced Micro Devices, Inc. OpenGL renderer string: AMD Radeon R9 200 Series OpenGL version string: 4.3.12618 Compatibility Profile Context 13.251
可以将IRQ 60分配给核心0,61至1和62至2吗？ 或者减少CPU负载。