我正在运行一些构建一个convnet的用户的代码。早期功能尝试通过运行:
将火车和测试图像复制到/dev/shm
import os
import time
paths = ["data/raw/images_train_rev1", "data/raw/images_test_rev1"]
for path in paths:
if os.path.exists(os.path.join("/dev/shm",os.path.basename(path))):
print "%s exists in /dev/shm, skipping." % path
continue
print "Copying %s to /dev/shm..." % path
start_time = time.time()
os.system("cp -R %s /dev/shm/" % path)
print " took %.2f seconds." % (time.time() - start_time)
我收到了错误:
cp: /dev/shm: Permission denied
cp: data/raw/images_test_rev1: unable to copy extended attributes to
/dev/shm: No such file or directory
我可以在Mac上使用/dev/shm
的替代品吗?
我使用以下信息在OSX中创建了一个ramdisk:
http://osxdaily.com/2007/03/23/create-a-ram-disk-in-mac-os-x/
然后: ls -lah / dev / rdisk1 crw ------- 1 xxxx staff 1,4 4月25日16:26 / dev / rdisk1
但是,当我尝试写入时,我收到错误:
/rdisk1 is not a directory
took 0.78 seconds.
Copying data/raw/images_test_rev1 to /dev/rdisk1...
cp: /dev/rdisk1 is not a directory
took 0.02 seconds.
希望你能提供帮助。谢谢。
答案 0 :(得分:2)
您可以使用此实用程序https://gist.github.com/koshigoe/822455
cd /tmp
git clone https://gist.github.com/822455.git
cd 822455
chmod +x *
sudo ./mount-ram.sh /dev/shm 1024
sudo chmod 777 /dev/shm
它将在RAM中创建1G的可写/dev/shm
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