Parallel computing power of two laptops
Publish: 2021-04-22 20:15:42
1. Do you say PC? In my opinion, any computer has the ability of parallel computing. It depends on how you define it. Parallel computing and distributed system are both computing methods, not hardware specifications
each task in your operating system has a process, and each process is composed of many threads. If you've ever had an operating system class, you should have met multi threads programming. You let different threads cooperate to complete the same task, which is actually called parallel computing and distributed processing.
you can see that the projects of those parallel computing classes also run algorithms with ordinary computers, The key point is that you will simulate this environment. Just like those who run network algorithms use socket to simulate, they also use a PC to simulate the network of N workstations.
if you say multi-core CPU, First of all, you don't have access to the firmware of ordinary motherboards. So you have to buy a programmable board of general purpose, But if you want to buy a multi-core basic, you can't find it... Only in the laboratory can you have it... Even if you find it... I think that the money for that board is estimated to be several times of the tuition for you to go to graate school and then enter the laboratory...
in a word, if the software is implemented, today's PC should have no problem, As for how to start parallel computing mode, you need to read the datasheet of this board.
I don't agree with the above saying that there must be two cores, People with two brains can do parallel. But the left brain and the right brain of one brain are also parallel. When refining different neurons, the other completely independent neuron is also parallel. Parallel is a way to solve problems, an idea. Parallel computing was first proposed in 1912. I can't remember when the multi-core processor appeared, But after 2000, at least
each task in your operating system has a process, and each process is composed of many threads. If you've ever had an operating system class, you should have met multi threads programming. You let different threads cooperate to complete the same task, which is actually called parallel computing and distributed processing.
you can see that the projects of those parallel computing classes also run algorithms with ordinary computers, The key point is that you will simulate this environment. Just like those who run network algorithms use socket to simulate, they also use a PC to simulate the network of N workstations.
if you say multi-core CPU, First of all, you don't have access to the firmware of ordinary motherboards. So you have to buy a programmable board of general purpose, But if you want to buy a multi-core basic, you can't find it... Only in the laboratory can you have it... Even if you find it... I think that the money for that board is estimated to be several times of the tuition for you to go to graate school and then enter the laboratory...
in a word, if the software is implemented, today's PC should have no problem, As for how to start parallel computing mode, you need to read the datasheet of this board.
I don't agree with the above saying that there must be two cores, People with two brains can do parallel. But the left brain and the right brain of one brain are also parallel. When refining different neurons, the other completely independent neuron is also parallel. Parallel is a way to solve problems, an idea. Parallel computing was first proposed in 1912. I can't remember when the multi-core processor appeared, But after 2000, at least
2. 1. Your graphics card should have two display interfaces.
2. You have two monitors, which are connected to different display interfaces of the graphics card.
3. Set two monitors in the driver program of the graphics card. If it is win7
you can use the shortcut key
window + P
to select
Expand
2. You have two monitors, which are connected to different display interfaces of the graphics card.
3. Set two monitors in the driver program of the graphics card. If it is win7
you can use the shortcut key
window + P
to select
Expand
3. Find a good cable, one is t568a, the other is t568b
connect it
(t568b and a are only orange (orange white) and green (green white) interchanged)
connect it
(t568b and a are only orange (orange white) and green (green white) interchanged)
4. You can use one of the computers to set up a local area network, and then use the other computer to connect to the established wireless network. However, both computers must be equipped with a wireless network card (supporting WiFi hotspot connection), otherwise they cannot be connected
1. Press and hold windows + r on the desktop to call out to run, enter CMD in the input box and enter
2. In the pop-up window, enter Netsh WLAN set hosted network mode = allow SSID = (enter the name you want to name your LAN here) key = (enter your own password here), and then enter
3. Then continue to enter Netsh WLAN start hosted network, and enter
4. Set successfully and exit
1. Press and hold windows + r on the desktop to call out to run, enter CMD in the input box and enter
2. In the pop-up window, enter Netsh WLAN set hosted network mode = allow SSID = (enter the name you want to name your LAN here) key = (enter your own password here), and then enter
3. Then continue to enter Netsh WLAN start hosted network, and enter
4. Set successfully and exit
5. Qq files in the LAN use LAN bandwidth, such as 100 m LAN, with QQ can reach 10 m speed, almost 100 MB bandwidth of the maximum transmission speed, but this has a premise, the IP address of two computers must be in the same network segment
in fact, there are many ways to transfer files, such as using feiqiu software, sharing folders between two computers, using remote desktop , and so on. What really affects the transmission speed is the bandwidth of the wireless network. Now the lowest wireless network claims to be 150m, but it's actually good to be 50m
if you have a network cable, you'd better use the network cable to connect the computer to the router, which should be able to reach 100 MB LAN.
there is also an old method, which is to connect the two computers directly with a direct line. The two ends of the network cable are 568a and 568B. This method is very popular in the era of 10m LAN, Later, few people used this method when the switch was down.
in fact, there are many ways to transfer files, such as using feiqiu software, sharing folders between two computers, using remote desktop , and so on. What really affects the transmission speed is the bandwidth of the wireless network. Now the lowest wireless network claims to be 150m, but it's actually good to be 50m
if you have a network cable, you'd better use the network cable to connect the computer to the router, which should be able to reach 100 MB LAN.
there is also an old method, which is to connect the two computers directly with a direct line. The two ends of the network cable are 568a and 568B. This method is very popular in the era of 10m LAN, Later, few people used this method when the switch was down.
6. 1. Generally, the power of notebook varies from 65W to 90W (ASUS notebook, the rated output voltage of power adapter (i.e. charger) is 19v, the rated output current is 3.42A, so the rated power is 19v * 3.42A = 64.98w,)
2. Now, according to the rated power of 65W, 1000W. H / 65W = about 15 hours, that is, about 15 hours of power consumption
3. One hour electricity consumption is about 0.07 degrees, that is to say, one day is 1.68 degrees,
4. Of course, this is the theoretical value. This depends on the actual power of the power supply, such as playing games, listening to songs, watching movies on the Internet, chatting QQ, and turning the brightness of the notebook to the brightest, so the actual power is definitely more than 65W.
2. Now, according to the rated power of 65W, 1000W. H / 65W = about 15 hours, that is, about 15 hours of power consumption
3. One hour electricity consumption is about 0.07 degrees, that is to say, one day is 1.68 degrees,
4. Of course, this is the theoretical value. This depends on the actual power of the power supply, such as playing games, listening to songs, watching movies on the Internet, chatting QQ, and turning the brightness of the notebook to the brightest, so the actual power is definitely more than 65W.
7. 1、 How to realize "network sharing" between two laptops (such as network connection sharing of wireless network card)
first of all, the wireless network of the two laptops has been turned on → "wireless network connection"
secondly, "control panel" → "network and Internet" → "network and sharing center" → "set up a new connection or network"
thirdly, select "set up wireless temporary (computer to computer) network" → "next" to set up "wireless temporary connection"
Fourth, enter "network name" → "security key (recommended)" → "next step" → "finish"
fifthly, "name the network and select the security option" → "enable Internet connection sharing", and "start the shared network" → "complete the creation of" wireless network sharing "
finally, through "search" → "wireless network" → "temporary security sharing wireless network" → "connection" → input "password" → "connection", the "network sharing" between two laptops can be realized
how to realize "wireless sharing" of shared files between two laptops
first, enable the guest account: right click my computer → manage → local users and groups → users → guest properties → cancel account disabled
secondly, right-click → "shared folder" or "disk" → "sharing and security" → "if you know the risk, but still want to share" → "please click here" → "network sharing security" → "Network Security Wizard" → "next" → "finish the guidance" → select "do not restart"
finally, right-click → "folder you want to share" or "disk" → "sharing and security" → "share this folder on the network". You can also set "shared file name" and select "others can change" here.
first of all, the wireless network of the two laptops has been turned on → "wireless network connection"
secondly, "control panel" → "network and Internet" → "network and sharing center" → "set up a new connection or network"
thirdly, select "set up wireless temporary (computer to computer) network" → "next" to set up "wireless temporary connection"
Fourth, enter "network name" → "security key (recommended)" → "next step" → "finish"
fifthly, "name the network and select the security option" → "enable Internet connection sharing", and "start the shared network" → "complete the creation of" wireless network sharing "
finally, through "search" → "wireless network" → "temporary security sharing wireless network" → "connection" → input "password" → "connection", the "network sharing" between two laptops can be realized
how to realize "wireless sharing" of shared files between two laptops
first, enable the guest account: right click my computer → manage → local users and groups → users → guest properties → cancel account disabled
secondly, right-click → "shared folder" or "disk" → "sharing and security" → "if you know the risk, but still want to share" → "please click here" → "network sharing security" → "Network Security Wizard" → "next" → "finish the guidance" → select "do not restart"
finally, right-click → "folder you want to share" or "disk" → "sharing and security" → "share this folder on the network". You can also set "shared file name" and select "others can change" here.
8. The first step is to make a cross network cable. The switch doesn't need to use any hub. Note that this network cable is a cross line (568a), not a peer-to-peer line. We usually use a peer-to-peer line (568B). This network cable you go to let the computer company do one can, according to the distance between the two machines, not too expensive. If you can make a network cable, just make one yourself
the second step is to insert the cross cable into the r45j interface of two computers, and then set the IP. The steps are as follows: right click the network neighborhood - properties - local connection - properties - internet protocol (TCP / IP) on the desktop, and select to specify the IP manually. The IP of the first computer is 192.168.1.1, and the subnet mask is 255. 255.255.0, the second IP is set to 192.168.1.2, the subnet mask is also 255.255.255.0, the gateway input is 192.168.1.1, DNS is 192.168.1.1, it's OK not to set here, so that the gateway and DNS can share the Internet
Step 3, in the previous Internet Protocol (TCP / IP) window, select Add protocol below, To add the ipsx protocol (it seems to be spelled like this), this step is very important, otherwise two machines will not find the server when playing CS or ra2 game,. There are also files and printers on the network to share, but the default should be on the choice, you can not tick it
step four, OK, let's go.
the second step is to insert the cross cable into the r45j interface of two computers, and then set the IP. The steps are as follows: right click the network neighborhood - properties - local connection - properties - internet protocol (TCP / IP) on the desktop, and select to specify the IP manually. The IP of the first computer is 192.168.1.1, and the subnet mask is 255. 255.255.0, the second IP is set to 192.168.1.2, the subnet mask is also 255.255.255.0, the gateway input is 192.168.1.1, DNS is 192.168.1.1, it's OK not to set here, so that the gateway and DNS can share the Internet
Step 3, in the previous Internet Protocol (TCP / IP) window, select Add protocol below, To add the ipsx protocol (it seems to be spelled like this), this step is very important, otherwise two machines will not find the server when playing CS or ra2 game,. There are also files and printers on the network to share, but the default should be on the choice, you can not tick it
step four, OK, let's go.
9. Just set up a LAN. With a cable connection, it is equivalent to the two computers is a LAN. LAN can share files and games
setting method:
1. First, connect two computers with network cable. If the win7 system needs to set up a home network, and then restart, you should see each other's computer from the network. You can refer to the following information. http://jingyan..com/article/f71d60375f6f431ab741d151.html
2. XP system. Just connect them with wires and set up the same working group. If not, it can be restarted many times. Please refer to the experience of netizens: http://jingyan..com/article/48b558e35e45f97f38c09af3.html
if you need to transfer files, you need to set the folder to share after connecting.
setting method:
1. First, connect two computers with network cable. If the win7 system needs to set up a home network, and then restart, you should see each other's computer from the network. You can refer to the following information. http://jingyan..com/article/f71d60375f6f431ab741d151.html
2. XP system. Just connect them with wires and set up the same working group. If not, it can be restarted many times. Please refer to the experience of netizens: http://jingyan..com/article/48b558e35e45f97f38c09af3.html
if you need to transfer files, you need to set the folder to share after connecting.
10. The two are absolutely cheating you. The back one can't be a second-generation i7. The gt540m is a very old notebook graphics card, and it can't be equipped with such a high-end CPU. If you want to listen well or decide everything by yourself, you can not ask questions. If you want to tell the truth, you have to tell the truth. As long as you are not Xiao, you won't buy two computers.
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