Abstract: A computer cluster system includes a plurality of computer groups each having a plurality of computer nodes. For each of the computer groups, the computer nodes cooperatively form a first ring topology, and one of the computer nodes serves as a first-ring master node of the first ring topology. The first-ring master nodes of the first ring topologies cooperatively form a second ring topology, and one of the first-ring master nodes serves as a second-ring master node of the second ring topology.

Abstract: A method for data transmission within a server that includes a processor, a main memory, a southbridge, a chipset, and a buffer, the chipset including a baseboard management controller (BMC), the method including: obtaining memory information about a segment of the peripheral memory allocated for a peripheral controller included in the chipset; transmitting a notifying command to the BMC indicating a data size of to-be-transmitted data associated with a booting operation of the server; transmitting at least a part of the to-be-transmitted data to the segment, according to the memory information; and transmitting a standby command to the BMC indicating that the part of the to-be-transmitted data has been stored in the segment.

Abstract: The invention discloses a method for igniting a lamp of a projector. The method includes steps of: (a) sensing a first temperature difference in response to power-off of the projector; (b) in response to power-on of the projector, detecting an aftercooling time and judging whether it is smaller than a predetermined cooling time, if YES, perform step (c); otherwise, perform step (g); (c) sensing a second temperature difference; (d) judging whether a ratio of the second temperature difference to the first temperature difference is larger than a threshold, if YES, perform step (e); otherwise, perform step (g); (e) calculating a re-cooling time; (f) controlling a fan to operate for the re-cooling time to cool the lamp down; and (g) igniting the lamp.

Abstract: The invention discloses a method for igniting a lamp of a projector. The method includes steps of: (a) sensing a first temperature difference in response to power-off of the projector; (b) in response to power-on of the projector, detecting an aftercooling time and judging whether it is smaller than a predetermined cooling time, if YES, perform step (c); otherwise, perform step (g); (c) sensing a second temperature difference; (d) judging whether a ratio of the second temperature difference to the first temperature difference is larger than a threshold, if YES, perform step (e); otherwise, perform step (g); (e) calculating a re-cooling time; (f) controlling a fan to operate for the re-cooling time to cool the lamp down; and (g) igniting the lamp.